The 10 Best Synthetic Differential Fluids (2022 reviews)
There are plenty of options available while buying synthetic differential fluids in the market right now, and if you're confused regarding which one to go for,
You have come to the right page.
Also check our buying guide on Best Differential Oils, which will help you understand market quickly.
Our review process:
Our Top Picks:
Best Overall: Buy: Mobil 1 Synthetic Differential Fluid READ REVIEWBest For Country Of Origin: Buy: Lucas Oil Synthetic Differential Fluid READ REVIEWDesigned For Transmissions: Buy: Lucas Oil Gear Oil READ REVIEWBest For Worth The Cost: Buy: Royal Purple Synthetic Differential Fluid READ REVIEWBest For Easy Application: Buy: Ford Rear End Fluid READ REVIEWBest For Diff: Buy: Motul Synthetic Differential Fluid READ REVIEWBest With Fast Shipping: Buy: Ford Synthetic Differential Fluid READ REVIEWBest For Great Price: Buy: Red Line Synthetic Differential Fluid READ REVIEWBest With Suvs: Buy: Acdelco Synthetic Differential Fluid READ REVIEWBest For Boat: Buy: Tribodyn Synthetic Differential Fluid READ REVIEWBest Overall: Mobil 1 Synthetic Differential Fluid
Buy on Amazon If you often find yourself scrambling for good fluid, Mobil 1 Synthetic Differential Fluid is your end point. The mobil 1 synthetic differential fluid is very smooth and it is constructed with excellent quality. Make sure this fits by entering your model number. In addition, the fluid is next, have no complaints and it reduces wear. Above all, the mobil 1 synthetic differential fluid is designed for limited slip-type differentials.Almost all customers found that the fluid is a much better deal than buying in bulk. And, they also found that the fluid is mobil 1, so it is good quality stuff. Further, they strongly agree that this oil does not take kindly to it. It will take a few minutes for the gearbox to shift smoothly. Overall, many have used the fluid for more than a few months without any problems, and it shows no sign of giving up.Top Customer Quotes:
- This is great for temperature range and it allows for smooth shifting.
- The bottle leaked some oil, but luckily it was late and its own box.
- This is great for a fair price and it goes with the best.
- This is a first-time used in drive-train applications.
Best For Country Of Origin: Lucas Oil Synthetic Differential Fluid
Buy on Amazon The Lucas Oil Synthetic Differential Fluid's superior materials makes sure that it ages well with use. The lucas oil synthetic differential fluid is much smoother and it is next. Make sure this fits by entering your model number. Further, the fluid is great for a great price and it makes for a great buy. The fluid makes for smooth shifting and it is highly recommend. Lastly, the lucas oil synthetic differential fluid runs nice, is made for good value and it is automotive.Almost all buyers found that the fluid is designed to meet all manufacturing specs. Further, they also found that the fluid is designed to stand up to high temperatures without losing its lubricity, making it excellent for use in limited slip differentials. In conclusion, at the price, they believe that they got a steal of a deal with it.Customers say that getting a 50 weight synthetic transmission fluid, along with fluid is useful.
Top Customer Quotes:
- It is pretty much a golden brown honey like color.
- This is a hypoid gear that you lubricate.
- This is great for a rear end and no chatter that people talk about.
- Package dimensions: 31.75 h x 15.24 l x 15.24 w (centimeters).
Designed For Transmissions: Lucas Oil Gear Oil
Buy on Amazon The Lucas Oil Gear Oil should be able to handle its purposes and duties with ease. The lucas oil gear oil contains a special additive package that increases lubricity and ensures less gear noise and longer bearing life. Make sure this fits by entering your model number. Also, it is made for good value, is soft and it is perfect for double check. The fluid is best for high temp range and it makes for a great buy. Above all, the lucas oil gear oil is much smoother, is great for cooler temps and it is affordable.Almost all customers found that the fluid is good to use on lsd diff.’s. Moreover, a few strongly agree that the fluids are putting off a high-pitched whine. Further, they strongly agree that the fluid ( oil, coolant, axles, trans ) and this helped a lot. Obviously, this product passed the test and had very satisfied buyers eager to share their experience.Customers discovered that getting a synthetic differential fluid, along with fluid is useful.
Top Customer Quotes:
- This has more synthetic material in it, so it would also last longer.
- 20 years of hauling a ski nautique around is long enough between oil changes.
- This is the best deal around for this oil.
- This will work in anything that uses gear oil.
Best For Worth The Cost: Royal Purple Synthetic Differential Fluid
Buy on Amazon If you often find yourself scrambling for a convenient and suitable fluid, Royal Purple Synthetic Differential Fluid should be your first option for buying. The royal purple synthetic differential fluid works for rear axles and it is highly recommend. Make sure this fits by entering your model number. Moreover, the fluid is made worth the cost, is next and it makes for smooth shifting. The fluid works great, feels better and it is great for a decent price. Above all, the royal purple synthetic differential fluid is automotive and it is designed for rear wheel drive.Almost all buyers opine that the fluid is not an additive but is a good gear lubricant. And, a few say that the fluid is good for the synchros as it does hurt brass. And, a few also found that the fluid is worth the extra money. In conclusion, at the price, they believe that they got a steal of a deal with it.Customers discovered that getting a fluids for rear differential and 4 runner differential fluid, with this fluid made their life much easier.
Top Customer Quotes:
- Good stuff, meets all specs for non racing gear.
- This is good in Harley Big Twin Tranny.
- This has reliable performance, works well and it is perfect for heavy weight.
- This is gear oil for differentials snd transfer cases, not for automatic transmissions.
Best For Easy Application: Ford Rear End Fluid
Buy on Amazon If you often find yourself scrambling for convenient and suitable fluid, Ford Rear End Fluid should be your first option for buying. The ford rear end fluid I bought new and it works wonders against knocks. Make sure this fits by entering your model number. Further, it is inexpensive, does the job and it works well. Lastly, the ford rear end fluid comes with awesome stuff and it has worn old clothes.Almost all customers agree that the fluid will improve more as it has a chance to work in. In addition, a few also found that the fluid is great for any cluth pack type with limited slip differential. In addition, they also found that this stuff is like concentrated gear oil smell. Overall, for almost all buyers, the fluid was what they were looking for.Few customers bought synthetic differential fluid and truck differential oil, along with the fluid.
Top Customer Quotes:
- For use on certain limited-slip differentials to reduce chatter and hypoid gear noise levels.
- This is designed to keep the clutches from chattering.
- Use according to owner guide recommendations.
- This has never happened since.
Best For Diff: Motul Synthetic Differential Fluid
Buy on Amazon The best part: Motul Synthetic Differential Fluid costs comparatively low and it is available to ship in 24 hours. The motul synthetic differential fluid is very smooth, makes for smooth shifting and it is highly recommend. Make sure this fits by entering your model number. Further, the fluid is much more and it is next. Finally, the motul synthetic differential fluid, which has been tried many, times, is safe and it is much smoother.Most buyers find that the fluid is some of the best stuff you can buy. Also, they strongly agree that the fluid is easy to use, the included flexible nozzle makes it easy to pour into the tranny and diff. In short, many have used the fluid for more than a few months without any issues, and it shows no sign of giving up.Top Customer Quotes:
- This is great for Subaru wrx 5spd transmission and diff.
- This is a very popular fluid for manual trans that works well.
- This works for filling the diff.
- This is also very good for differentials.
Best With Fast Shipping: Ford Synthetic Differential Fluid
Buy on Amazon For a low asking price, Ford Synthetic Differential Fluid has managed to overwhelm their customers by packing as many features as they could. The ford syntheticdifferential fluid is black and it can be bought for good value. Make sure this fits by entering your model number. This product meets all the fill - for - life requirements of a motor company. The fluid is used for multi-purpose and it is good for passenger cars. Also, this works as expected and it is next. Finally, the ford synthetic differentialfluid is safe, is for extreme pressure and it is very thick.Most customers found that the fluid is perfect for the 2004 f150 rear differential. And, a few also found that the fluid is easy to install in the rear end. Also, they also found that the fluid would either be this or the 80w90 dino stuff. In conclusion, many buyers have used the ford synthetic differential fluid for more than a few months without any problems, and it shows no sign of giving up.Customers found that buying a synthetic differential fluid, along with fluid is useful.
Top Customer Quotes:
- This is the best, but the cost is a factor.
- Motorcraft sae 75w-140 synthetic rear axle lubricant.
- The fluid works perfectly fine obviously, since it 's by ford.
- This is automotive and it is highly recommended.
Best For Great Price: Red Line Synthetic Differential Fluid
Buy on Amazon The Red Line Synthetic Differential Fluid's material feels more premium than its price would suggest. The red line synthetic differential fluid can be bought for good value, does the job and it allows for a great deal. Make sure this fits by entering your model number. In addition, the fluid is great for a great price, it works great and it is extremely quiet. Above all, the red line syntheticdifferential fluid is good for country of origin and see picture.Almost all customers opine that the fluid is great oil for 2015 4runner front and rear differentials. Also, they strongly agree that the fluid is a better experience because the whole truck feels more responsive. In conclusion, for almost all buyers, it was just what they wanted.Customers say that buying a viscosity differential oil, along with fluid is useful.
Top Customer Quotes:
- This will probably work, but make sure it’s 100% the correct item for your vehicle.
- This can hurt fuel economy, gears, moving parts, rubber materials, etc.
- This can be used on rear diff in the 2016 4runner.
- Package dimensions: 22.098 h x 9.906 l x 10.16 w (centimeters).
Best With Suvs: Acdelco Synthetic Differential Fluid
Buy on Amazon We would, of course, be remiss if we didn't mention Acdelco Synthetic Differential Fluid for daily purpose. The Acdelco synthetic differentialfluid does the job and it is good for double check. Acdelco offers a full range of oils, fluids, and vehicle care products to protect, enhance, and maintain your automobile. This product pairs long fluid life with a pleasing grape scent. The fluid is manufactured to meet expectations for fit, form and function, offering high quality and great value. Most importantly, the acdelco synthetic differential fluid is the true general motor original equipment parts brand, infusing a century of experience, innovation and quality into more than 90, 000 gm oe and other parts.Most customers opine that the fluid is great for 03 k1500 g80 locking diff. Moreover, a few strongly agree that the fluid works with all full - size gm trucks and suvs. Also, they also found that the GM price for the same fluid is higher compared to Ac delco price.Customers say that getting a synthetic differential fluid, along with fluid is useful.
Top Customer Quotes:
- Meets American petroleum institute (api) gl-5 specification for use in severe conditions.
- This is used for heavy-duty, is good for passenger cars and it runs much smoother.
- This is not a limited slip rear but does use clutches to engage the locker.
- This is perfect. no limited slip additive required.
Best For Boat: Tribodyn Synthetic Differential Fluid
Buy on Amazon The Tribodyn Synthetic Differential Fluid is suitable and reliable and fits well with your daily uses. The tribodyn synthetic differential fluid is dominated by huge corporations who pour billions into marketing. The Manufacturer says: We approach lubrication from the standpoint of treating the metal, not the oil. The first oil company to receive a US functional patent in decades. The fluid runs cooler and it comes with great stuff. In addition, it allows the user to see clearly the purity and clarity of the oils. Finally, the tribodyn synthetic differential fluid makes for smoother shifting and it is much smoother.Almost all customers opine that the fluid has a view window with volume lines and a nice cap. Further, they strongly agree that the fluid is great in manual training. In conclusion, most buyers agree that the fluid suits best, and no one questions it.Top Customer Quotes:
- Ceramic film can fill in small scars in metal.
- This oil bonds to metal to prevent corrosion when not in use.
- releases a ceramic film in areas of high heat and friction.
- meets or exceeds the api gl-5, gl-4 service designations and most major manufacturer specifications.