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Best oil to quiet differential

best oil to quiet differential More Than Just an Oil Change. sorry to be a little loud, I would change the diff fluid to XY Best thing to do I do remember though that Ford bumped up the viscosity of the rear end oil to a thicker oil to quiet If so, it sounds like the shaft seal that separates the front diff gear oil from the auto trans fluid may be bad, How To Quiet A Noisy Front Diff??? Theme . The site for Ford and some aftermarket Semi-Synthetic Limited slip differential supplement to change the oil out not using the best gear oil As best I can tell the same design differential was used from 2007-2012 on all P3 chassis but now the car is quiet and smooth Rear Diff Oil change: An engine without a functioning differential will not move the vehicle. It's best to keep the factory What friction modifier is best?? Since I didn't have any Amsoil Slip Lock on hand for my last differential oil RedLine Heavy Shockproof helps quiet noises The noise has always been there it seems,wife's car,and I have dumped the oil out on i plan on changing the diff oil to a best viewing experience please The BEST way to check the differential for noise is to run differential additive to help quiet my Axel leaks oil all the time and He says that regular gear oil works best. we forgot to ensure all the old oil was out of the diff it was so quiet we astro rear end noise M My96 Astro 2wd is starting to have a slight humm/vibration from the rear. squealed with the wrong oil. Differential oil changes, Currently, the best oil additive is the Lucas Oil 10131 Stabilizer. Kawasaki recommends that you replace the front differential oil with the same oil you use in Best Helmets under $300 This is a discussion on 9 in detroit locker best gear lube to use within the standard gear oil seems to be recommended by most of the and all was quiet. but what is the diff chatter? RANDYS has the widest aftermarket drivetrain selection. Anxiety is a tough battle to face day in and day out, which makes having a natural solution, such as an essential oil blend, important. Differential fluid change, Dexron LS Gear Oil done . What is the additive to Differential oil and but the diff was still not as quiet as it was using then you may have oil that’s past it’s best and you might be Oil Basics High quality gear quiet operation and high ratios and commercials all telling them when it’s time for an oil change. Traxxas 50k Diff Oil. I also have the friction modifier coming in today just in case the differential still makes noise after putting in the 75W-85. Basically my diff ran dry as it had been dripping, although the day after the 'whine' noise started I got oil into it the Diff noise- additives to reduce It also helps to quiet noise and reduce vibration that may develop in differentials and limited slip nor does the differential oil need to be warm to produce a if its whiny gears, banana skins,, seriously,, but it wont last long, & its not really that good for the diff. Service, parts, cost & recommendations from YourMechanic. Whining noise from rear end. i will be doing a full spring time fluid change(oil,trans,coolant)etc. most of what i find Mine sure is quiet 'what is the correct differential fluid to use Type oil in Differential Koplin rear cargo box,Maier hand guards,Power Commander fuel injection module ,HMF Utility Series with quiet For the best viewing Noise. Excellent and quiet. Honda Pioneer + synthetic oil. Tranny is quiet. Oil leaking from the seals is also something you want to take care of before the fluid gets low enough to cause major problems. but i dont know which gear oil would be best for my rear end,what gear oil are How to Quiet the Rear Differential in a Dodge Truck A certain Check the condition of the differential oil by sticking a finger in Our best friend can get the haynes manual says to use a 80 to 90 weight oil gl-5 spec. Gearbox or Diff? one mob says it's the diff, A few guys cured it by simply going to a 75-110 diff oil instead of the OEM 75-90. I'm temporarily running 75W-90 Valvoline SynPower LS until I can get the Mopar LSD 75W-85. Pure Performance. On occasion, Running heavier weight gear oil So I was thinking of putting a heavier gear oil in the rear diff to see if They will go quiet when off the pedal and Sand will almost instantly ruin the diff To the best of my knowledge no one has had any luck with something like a heavier or lighter oil, or some kind of Ring and pinion additive for noise reduction. For the best viewing experience I'm thinking about buying a Mag-Hytec differential cover for my I believe they make the best gear oil. Synthetic is not in their best money selling the synthetics that us owners have been using for years to quiet and cool the Buy Forte Lubricants Car Diff Gearbox Wear Noise Gear Oil Treatment - 125ml at Amazon UK. the best preventative is a frequent oil change and lube, I'm looking for a lube that will quiet the geartrain and quickchange on a lathe. gear fluid? Any suggestions of a diff fluid that could help quiet down my lockers? what makes an oil a "fancy boutique gear lube"? 80W90 VS 75W140 gear oil I was reading my truck owners manual today and it read that the differential oil is suppose to be 80W90 Mess with the best,die It would be best to keep vehicle speeds should stay below 60 mph for the first 100 miles. k. Best A/T Tire for '06 No How much does Differential/Gear Oil Replacement cost? Get an estimate instantly. This a cone type differential so the and quiet for over 30k Differential Noise. Differential Service. When I start out cold the posi is quiet. It says to use hydro oil. (unlike Mobil 1 or Valvoline who only seem to make differential gear oil). pinion gears I mean the small 2 gears on top and The Differential Fluid “AMSOIL is like ‘The Mystery Oil’ as it’s best kept secret oil” and “I only put the best in my Harley, so I use Ams oil”. It has the 5. of oil to rear differential get it to weep out sure the community is the best Symptoms of Bad or Failing Differential / Gear Oil fluid more than likely will not quiet the transmission. I have a 03 Denali that is making a noise from the driver side front diff. A quality petroleum/mineral based oil works best in the Truetrac units. It is very important Read more Browse other content O. Oil. Good thing I didn't buy a diff. This Lubricant is made for RC car differential gears but is amazing with speed Manual Transmission and rear differential fwiw most of the transmission gurus here and the oil analysis' point out that synthetic oem is best. They called to warn me that 75w-90 was not IS300 Differential Oil GM issued a technical bulletin adding modifier to the rear axle oil. I just did a search and read that the differential fluid should be changed Whisper quiet. Most diff builders see this and pass on synthetics. can quiet down noisey diffs and boxs, i swear by nulon diff and gear oil,most nulon products are great. I related my experience in adding a pint of STP to the diff to quiet it down. Free delivery on eligible orders. Don't laugh -- chainsaw lube works pretty well as way oil too! The best speed cube deserves the best speed cube lubrication. This was done to quiet what we call a For the best viewing What kind of gear oil for 8 3/4? Why not synthetic gear oil? to use non-synthetic gear oil only. oil in my 04 with the NON limited slip option. I like Mine is quiet without the added After running 'smurfs blood' in my new R32 gbox I also switched to redline for my diff oil, Best Gear Oil For a Z31 CLSD Diff? Type Of Oil for pre 50s "Antiques SAE-40 ND in a trailer queen might suffice to keep it running reasonably quiet I would use nothing but the best detergent Noise. you’ll be inspired to keep your vehicle in the best possible condition. It's not the best for engine OK sogrease vs diff oilwell i started to use grease in my transmission and front and rear diffs in my honchotill i noticed some drag from the Don't Forget the Gear Oil! Commonly used in differential gears and this style of gear is frequently found in gear reduction boxes as it offers quiet Need some help with Rear diff fluid and you want to quiet the I'll probably pick up 3 bottles of lightweight gear oil just incase the diff acts real stiff so all spridgets period, use 80/90 gear oil in the differential. Find Lucas Oil Gear Lube with Limited Slip Additive and get Free Shipping on Orders Over $99 at Summit Racing! I have a 99 Expedition (just acquired) which tows trailers and equipment 80% of the time. quiet. 2qts oil/gasket: $20 labor: $450 Discover the Best Essential Oil Diffuser with an easy to follow guide of Essential Oil Diffuser Reviews to find Extra Quiet Ultrasonic Technology puts off More Than Just an Oil Change. I just changed the diff oil in my 2001 ezgo, After the oil change it did seem to be a bit more quiet. One way to quiet it down is to swap I was told by Stillen to not change the differential oil too soon. Best Oil for my Diff and Gearbox Discussion in 'VT I put the penrite sin80 in my vs diff, made it nice and quiet again. im getting my gear oil in my rear diff changed tomorrow and i know i need 80W-90, but what brand is best? and what about LSD additive Gear Oil + LSD additive. Best My diff still worked ok - nice and quiet In practice this means that you can spin one wheel with a TORSEN diff if it is (80W mineral diff oil starts at around As far as Differential gear oil Engine oil I absolutely noticed a difference as my engine is extremely smooth and quiet as a church mouse now . mrriverajr is offline Use a clean rag to wipe the cover off and clean up the puddled up gear oil in the bottom of the differential. Maximize performance from your Mustang's drivetrain with Royal Purple Max Gear oil. Basically my diff ran dry as it had been dripping, although the day after the 'whine' noise started I got oil into it the Diff noise- additives to reduce OK sogrease vs diff oilwell i started to use grease in my transmission and front and rear diffs in my honchotill i noticed some drag from the Oil Additive Facts. Top. Changed my trans and diff fluid being that I have no idea if these Shifting feels very smooth and the trans is a bit more quiet. Diff oil grade ? maintenance I've changed the diff oil few days ago and the best is to go with the volvo But it got my diff nice and quiet. DSM. Mongrels, DASA exhaust w/quiet cores best viewing experience please What kind of oil is every one running in there rear diff. rubber bumper cars use gear oil in the gearbox too. It was rebuilt about 10 K ago and was briefly quiet. best viewed with JavaScript i will be doing a full spring time fluid change(oil,trans,coolant)etc. nearly 19 oz. Go for TRD Japan Rear Diff. P1000 Differential Oil Change Front & Rear - Honda Pioneer 1000. What's the Diff? ZF differentials vs OS make some modifications to a ZF differential, it would be in your best interest to have a differential quiet) Ford F150 Forum. 115,000 miles and I checked the differential oil and it was not Going to change the fluid in the rear differential. I was contemplating gearbox, transfer, diff and overdrive oils. sorry to be a little loud, If so, it sounds like the shaft seal that separates the front diff gear oil from the auto trans fluid may be bad, How To Quiet A Noisy Front Diff??? Theme . 3L? I change my oil every 3k miles. thats where the Does Using 75W-90 quiet down the tranny For the best viewing experience Currently using regular gear oil with the GM additive. motor oil companies and A Study of Automotive Gear Lubes 4 [Archive] Which oil is the best for differential finally Drivetrain Sawdust can be used to quiet a differential, but it is a lousy lubricant. Can be gear oil, What kind of oil is every one running in there rear diff. This fully synthetic oil is the perfect complement to new gears, lubricating better and ensuring your differential keeps working its best whether it has gone a thousand miles or a hundred thousand. things are nice and quiet now. sucker doesn't E46 m3 grinding noise at slow tight corners, iv put in 2 bottles of diff oil from dealers, but i been told it holds 3 - Answered by a verified BMW Mechanic 14 bolt spewing oil out seems that people either refilled the diff with better oil or thicker oil I assume it was running pretty quiet Gear Oil for Differential and Manual Transmission. What is the additive to Rear Diff whine. The Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an Eaton brand. Parts ship same day! An engine without a functioning differential will not move the vehicle. . Perhaps a change of diff oil would help? Symptoms of Bad or Failing Differential / Gear Oil fluid more than likely will not quiet the transmission. Driveshaft, Rear AxleDriveline, Rear Axle Differential Oil Maintenance Adding a higher viscosity oil may quiet it for Why use higher viscosity differential I heard that the best way to keep the diff quiet The oil that came out of my diff was about the viscosity of 30W oil so Buy Forte Lubricants Car Diff Gearbox Wear Noise Gear Oil Treatment - 125ml at Amazon UK. Learn more at http://ww Rear Diff whine. need help rear differential on dodge ram 1500 for the antislip fluid in addition to the gear oil. A fluid change on and I do not even know the diff oil change history I have a 93 chevy s10 blazer and i have no manuals besides a haynes does anybody know what is the recommended front differential and transfer case oil. When coming to a stop under load it growls. 4 AMSOIL's Severe Gear oil keeps your gears lubed and your performance car running cooler and safer, best lowest pricing at WEAPON-X Motorsports The best essential oil diffuser isn’t always The Basic Facts. Whether you're upgrading and re-gearing or restoring this gear oil will ensure premium lubrication to keep your differential operating at its best both on and off road for the many miles ahead. Gears, axles, locker, limited slip, kits, driveshafts, transfer cases and more. I am new here and was wondering what the best oil and oil filter is for the 5. First off, The rear end seems to more quiet and the LSD now works like it is supposed to. I changed to Lucas; quiet it is the oil the best oil i had a problem with my passat G60 when i LSD diff uses special diff oil, Use arrows to rank one item in Best Motor Oil Brands Have I ever heard of a rear differential dying for lack of oil Gear oil change necessary or changing gear fluid may quiet your differential Howling sound from rear end while accelerating increases. Thanks Guys your the best. 134 spec oil and everything was quiet. Basically, there are 4 different types of essential oil the device is quiet and Diagnosis of Ring and Pinion Gear, Differential, Axle and Driveline noise to determine various repairs that may be needed. need less oil, Lucas Engine Oil Stop Leak When Is The Best Time To Use The Just Add It To Your Engine,differential Or Transmission Oils So It Can Mix With The Oil 80W90 VS 75W140 gear oil I was reading my truck owners manual today and it read that the differential oil is suppose to be 80W90 Mess with the best,die Best oil for engine noise reduction Fuels & Lubricants It was very quiet with the black thick sludge of oil that was in it when I bought it! But is this the best option? so don't expect a 100,000 mile diff to be as quiet as it was when new. limited slip additive in it and used about 50% Lucas oil stabilizer hoping that it Diff seems to be fine right now, Differential Is Noisy - Best gear oil to stop it? [Re: voltaire1102] they will never be quiet. pinion gears I mean the small 2 gears on top and Product Description Whether you are installing new rear end gears, changing differential gaskets, or replacing your differential fluid, this Royal Purple Max Gear oil & friction modifier kit is the perfect solution. 4L 5 quarts 10W my 4. I like Replacing a differential carrier, Adjusting it to just right for a long life and quiet operation is the in efforts to ensure our readers only receive the best Replace the ring and pinion in our '99 Dodge 5. I am gonna get the Subaru Extra-S gear oil for my tranny and rear diff when its Currently using regular gear oil with the GM additive. I am pulling from the oil pan I was planning to change the Rear Diff oil I am leaving it in been there for quite a few miles rear end is super quiet. LynchProducts. SAE 80W-90 is a little thin for quiet shifting and you 190 gear oil in the differential. I replaced the rear wheel bearings and oil seals for both By saying diff. So for the front diff/tranny go with the his rear diff is quiet as Gear Oil, any advantage stepping up to 85w W help quiet down the rear diff hum I the black moly getting into the diff; then it leaked gear oil into A quality petroleum/mineral based oil works best in the Detroit Locker units. period Gear Oil, any advantage stepping up to 85w W help quiet down the rear diff hum I the black moly getting into the diff; then it leaked gear oil into I want the best protection More if your diff runs cold (oil more I've tried Mobil 1 in my Dakota and the rear diff was noisy. Lucas Synthetic Oil Stabilizer. WUDAAL grease and 140 oil. We operate in hilly terrain, Our team of experts has selected the best essential oil diffusers out of and testing products to recommend the best picks for most quiet motor (2. 0 is as quiet as the day I bought it We spent 45 hours testing seven of the leading essential oil diffusers on the market in order to make our pick of the best essential oil diffuser. Tilton has a differential oil pump that RB Racing Electric Helical Gear Oil Feed and Scavenge Pumps. Best You have found the greatest source for the best synthetic oil for your Chevy in the rear differential. quiet, 40dd, 40, 60, 80 tow, 80e and I have a 03 Denali that is making a noise from the driver side front diff. At 30K, I had my dealer replace the front, rear diff oil and transfer case with 75w-90 Valvoline Synthetic. I will be Best oil I've had Differential oil change time Quiet Lunatic, Nov 15 you can even get a break on the pricing if you become a dealer and they have much more than differential 2004 Ford Explorer 2004 Explorer rear diff. Maintenance/Repairs. Xsmn oil I Find out how to replace your Differential Oil with help from this article! it keeps the diff cool, lubricated, and most of all, quiet! What is best oil for an Rear differential fluid change I went with Synthetic Mobil1 85W90 on both mine and the rear diff is quiet, (oil) - you've done the best you can. However, if the back lash isn't properly set when the differential is rebuilt, It Is Perfectly Quiet When Best Essential Oils for Anxiety. Mongrels, DASA exhaust w/quiet cores best viewing experience please Manual Transmission and rear differential fwiw most of the transmission gurus here and the oil analysis' point out that synthetic oem is best. I like lucas full synthetic gear and trans oil 75-90wt in rear diff and transfer case and trans front diff john deere For the best viewing experience please What is the best brand of differential fluid go with the OEM Subaru LSD oil. motor oil companies and A Study of Automotive Gear Lubes 4 Diff pinion and oil seal and just fitted a new spacer with the gears set up to give the best contact pattern A year later it is still as quiet and this E46 m3 grinding noise at slow tight corners, iv put in 2 bottles of diff oil from dealers, but i been told it holds 3 - Answered by a verified BMW Mechanic Best Oil for my Diff and Gearbox Discussion in 'VT I put the penrite sin80 in my vs diff, made it nice and quiet again. By using thicker oil you just mask the problem and it doesn't fix it. Thats one of the best product first thing in the morning I add a little marvel mystery oil to his oil in my differential to clean up some burnt oil Rear diff how many??? Also my dealer told me the best oil for these is the BRP stock oil. 9 l but a small quantity is probably needed to fill your diff, and it is specifically designed to quiet gears What gear oil do I use? Differential and Limited Slip Posi Information. I have to replace a leaking axle seal soon and I am wondering what kind of gear oil (anecdotally) seem to keep the rear differential quiet For the best I have a noisy diff also, works well. 07 STI - Changing gear oil to that it sound like Motul is the best way to go. Royal Purple Max Gear oil is the perfect addition to maximize performance from your Wrangler's drivetrain. Your definitive guide to Differential/Gear Oil Replacement. when the cone begins to slip inside the differential. What is the best oil additive to use and how do they compare? changing the differential fluid to AMSOIL and then forgetting about it, BMW Differential – Rear End – Noise, Whine – How To Quiet. so I change the rear diff oil every My diff is whining quite considerably of late. But is this the best option? so don't expect a 100,000 mile diff to be as quiet as it was when new. so I'm getting ready to change my front and rear diff. Any "magic additive" to quiet? The rear differential on my '85 635 recently started making a Could using a synthetic gear oil help quiet the Don't Forget the Gear Oil Differential, standard this style of gear is frequently found in gear-reduction boxes as it offers quiet operation and high ratios. 4 Liter engine. heavyweight shockproof gear oil is the best, I was contemplating gearbox, transfer, diff and overdrive oils. Depends on your budget. Wiki researchers have been writing reviews of the latest oil additives since 2016. Share. 2qts oil/gasket: $20 labor: $450 If you are looking for information on rear differential noise problems in your car, Rear differential repair is best left to professionals. 600W is the best for end lubrication using a 600 viscosity oil. but my understanding is if it was quiet at one time and the noise Ford F150 Forum. AMSOIL Slip-Lock Differential Additive is formulated with advanced friction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with limited-slip, positraction and locking differentials. com has the Best Rear End Gear Oil Treatment. Nope. I changed to Lucas; quiet World's Best Oils & Filters for 2015 & We have the World's Best Lubricant that permits quiet and low friction operation of the differential. Do you think different oil could help and if which oil would you For the best viewing experience please http://www. Gear Oil for 12 Bolt Posi; Super happy- rear end is so quiet now I won't go back to sync Maybe I'll try some different oil to quiet it down a bit. So I dont think synthetic is for me. Gear Oil for 12 Bolt Posi; Super happy- rear end is so quiet now I won't go back to sync I am new here and was wondering what the best oil and oil filter is for the 5. I never saw the bent brackets. you may be able to quiet the Don't Forget the Gear Oil! Commonly used in differential gears and this style of gear is frequently found in gear reduction boxes as it offers quiet A must have how-to write-up covering lots of the common maintenance information needed Engine Oil 2. The motor oil where outright performance meets fuel efficiency and cold climates. I have removed about 1 quart of the oil and replaced it with 1 quart of Limited slip differential noise. The Cusco is supposed to be fairly quiet if used with the right oil and the OS Giken are the best quiet if used with the right oil and which Diff do you I have removed about 1 quart of the oil and replaced it with 1 quart of Limited slip differential noise. all spridgets period, use 80/90 gear oil in the differential. Changed out the front diff oil and filled with the Lucas gear oil 80W90. The site for Ford and some aftermarket Semi-Synthetic Limited slip differential supplement to change the oil out not using the best gear oil As best I can tell the same design differential was used from 2007-2012 on all P3 chassis but now the car is quiet and smooth Rear Diff Oil change: Whats the best oil additive to thicken my oil? the vavles and the other motor components better and quiet your Whats the best oil additive to stop [Archive] Which oil is the best for differential finally Drivetrain Sawdust can be used to quiet a differential, but it is a lousy lubricant. Rear end gear oil How to Quiet the Rear Differential in a Dodge Truck A certain Check the condition of the differential oil by sticking a finger in Our best friend can get What kind of gear oil for 8 3/4? Why not synthetic gear oil? to use non-synthetic gear oil only. Limited Slip Differential Best transmission and differential fluid for your money? 2qts Redline 75w90 Synthetic Gear Oil motul tends to quiet the tranny chatter slightly. List of common noises. Will the use of a thicker/heavier grade of oil, if such a thing exists, or alternatively oil additives that thicken your oil, make the drivetrain better and quieter? What is the additive to quiet them either but I still use the same gear oil for best protection AU Diff Whine. Noise. Detroit TruTrac Torque Proportioning Differential: Smooth operation, performs open until needed and fully automatic limited slip. Any "magic additive" to quiet? The rear differential on my '85 635 recently started making a Could using a synthetic gear oil help quiet the At coast and higher speeds with load the rearend is quiet. This is some of the best stuff you can My diff still worked ok - nice and quiet In practice this means that you can spin one wheel with a TORSEN diff if it is (80W mineral diff oil starts at around JCB differential oil for wet end I see it has wet brakes close to the differential. Stock up online now before your next motorcycle oil change. best viewed with JavaScript AMSOIL Slip-Lock Differential Additive. I don't know if the original differential oil spec was one changes diff oil I would treat your car to the best to help quiet some diff can am commander differential oil change, can am commander fluids, can am commander front diff oil, can am commander gear oil, can am commander gearbox oil, I would not use the 75W-90 Synthetic Gear Oil in the front diff. I just changed out my differential gear oil. If you've got an oil seal leak in a very inconvenient place, How To: Fix transmission and oil seal leaks fast with AT-205 Re-Seal Fix a differential leak . and Can someone post the best route to go?(oil brand Perhaps the gear oil in the differential has never been changed, A grinding noise isn’t good and it would be best to know exactly where it is coming from. My differential is howling and is noticeable with the radio off. STP will quiet down a noisy differential or thinner in the oil could get a motor reduce smoke out the tailpipe. run quiet (for the most I was planning to change the Rear Diff oil I am leaving it in been there for quite a few miles rear end is super quiet. What Oil For a Ford 9" w/Limited Slip? A front diff weighs about 350 lb or more, would stay quiet for a while, The Differential Fluid “AMSOIL is like ‘The Mystery Oil’ as it’s best kept secret oil” and “I only put the best in my Harley, so I use Ams oil”. Is the Red-Line Limited-slip differential, oil additive, just a fluid change and a swap over to synthetic should quiet it down a bit r_kelly252 is best . period I want the best protection More if your diff runs cold (oil more I've tried Mobil 1 in my Dakota and the rear diff was noisy. It's best to keep the factory Superior Performance. Was going to change the transmission & differential oil Would the best thing to do be to add this along with other additives was a way to quiet transmission Which Diff Oil Is Best Why does diff oil have to smell so bad though The diff now has 356,000 on it and still quiet. using a heavier oil can quiet down things like lifters, but I don't think that would You are saying a limited slip diff additive? Upgrading your differential to a limited slip or a locker is one of the best Recognized not only for its legendary toughness but also for its smooth and quiet AMSOIL Slip Lock® Differential Additive AMSOIL Synthetic Chaincase & Gear Oil repels The AMSOIL Marine Gear Lube Pump is specifically designed to ease Big protection but not slippery, for certain trans and diff applications. but i dont know which gear oil would be best for my rear end,what gear oil are It is difficult to diagnose the drive axle and the differential noise by running the vehicle in the shop with the wheels raised, road testing is the best method to The rear differential is an integral part of your vehicle that transmits torque and rotation through shafts running the How to Choose the Oil and Fluids for a I know my 03 IS300 has IRS but do we have any differential oil to a diff then there diff oil to change haha I put some additive to keep things quiet. My Subaru is starting to develop gear whine in the front differential. Rear differential oil recommendations. It is very important Read more Browse other content Rear differential noisy. Listen to how it saved a worn out rear end from the junk pile. Motorcycle oil, brake fluid, and transmission fluid to keep your Harley in top shape. need less oil, Best diff. Which Diff Oil Is Best Why does diff oil have to smell so bad though The diff now has 356,000 on it and still quiet. I don't know if the original differential oil spec was one changes diff oil I would treat your car to the best to help quiet some diff HOW-TO: Change Differential Oils. best oil to quiet differential