Product Reviewed: OE Fuel-Efficient Synthetic Automatic Transmission Fluid
Current Rating: 5 out of 5 stars
Votes & Reviews: 33 vote(s) and 74 user reviews.
Reviewed by Sean: 
Used exclusively in all my Cummins diesel trucks. 300,000+ miles on them. One just recently had transmission rebuilt only for OD issue, and other has never been opened up. Superior performance in the high desert heat where I live, and long service intervals between changes. Always stays red!
Reviewed by Joseph:
Lowered my trans temp by 40 degrees
Reviewed by Jeremy:
Great product
Reviewed by Vincent:
I have full trust in all Amsoil lubricants and have been using them for over 20 years now.
Reviewed by Chad:
Great trans fluid.
Reviewed by Andrew:
Awesome. Truck needed it.
Reviewed by Eric:
Drain and fill on my 13 volvo s60 t5. Slight improvement on gear changes.
Reviewed by Tino:
Put this in my T case. Old oil was past do. This fluid got rid of some noise in the cabin. Works good. I'll see how it holds up this winter when I use 4x4 the most.
Reviewed by Nicolas:
I bought x2 of the 2.5 gallon jugs. Added a deep pan to the 4l80e in my '03 Chevy 2500 and wanted to add fluid and also get some of the old fluid replaced. Kinda doing a partial flush with the Amsoil Dex VI. I'll go back in the transmission in about two weeks or so, drain as much fluid as I can, add new filter and top it back of lf with Amsoil.
Reviewed by Steve:
I use this oil in several vehicles. Works great!
Reviewed by Terry:
I bought this product
to use in my transfer case in a truck with 300000 km so that I can keep on driving it indefinately and know it has the best protection.
Reviewed by Thomas:
Amsoil products work great! The tranny shifts smoother.
Reviewed by Mark:
I read reports that people started having issues with
there 9 speed transmissions. At 52000 miles I noticed the same. I also read that the transmission was serviceable. lol After buying Amsoil and a ram filter I discovered that serviceable meant 17.5 hour job that. Required removing transmission bolts to break transmission in two pieces.
I choose to drain as much as I could just shy of 4 quarts. Instant improvement with shifting and drivability. Awesome stuff as always.
Reviewed by Mike:
Used this on my 2015 Ford Explorer and it'a working great ! 92,000 and going
Reviewed by Chris:
every trans I have except jaguar with 5hp24
Reviewed by Kelly:
I use this product in my 2005 Jeep LJ and have had no issues just smooth transfer in the transfer case.
Reviewed by Van:
Used it in my 2013 GMC Sierra and it really seemed to help with shifting. No more transmission flares. Other than that, time will tell.
Reviewed by Van:
Used it in my wife's 2013 Jeep Wrangler and it really seemed to improve shift quality. Other than that, time will tell.
Reviewed by Alexandr:
Car works different
Reviewed by David:
Used it on a 2004 honda civic transmission feels like its brand new. With perfect shifting. I did a complete drain and fill 5 times. 50 mile increments. Too clear out old now i just do one drain and fill every other oil change around 10000 miles. I am getting my money worth out my highway beater. 260000 miles on trans. And still going
Reviewed by RICK:
Cool thanks
Reviewed by RICK:
Cool thanks
Reviewed by
Dickie:
Use in my daily drainer and it's great
Reviewed by SamL:
After changing the fluid and filter, the truck runs just like new. Could not be happier
Reviewed by Dylan:
Great fluid, felt a difference instantly when replaced old fluid with this. Smoother shifts both going into gear and when changing gears on down hill grades. Great stuff.
Reviewed by Ozzieskid:
Lovin' it! We'll see how it does over
the long haul, but had numerous transmission shift fault codes, neither led myself or a more experience gearhead to believe the tranny in my Chevy 2500 HD was failing, just had some intermittent quirks. With that, I made the shift to AMSOIL when it was decided upon to change the tranny fuel, especially not knowing if the reseller business had performed the task since the Chevy was nearing 50k miles.
Went with a deep pan and filter, added LOTS of AMSOIL tranny fluid, and no more intermittent fault codes, slightly better gas mileage, better shifting, and lower tranny temps.
Purely not saying AMSOIL is a tranny repair recommendation, but in my particular case it's all relative.
Reviewed by Road runner:
One I call the best of all oil never had problems. I have 2017 Malibu my car rans okay & rougher be for I changed oil I took my car to be tested on a dino, I think I spelled it wright if not sorry anyways found with the oil I had in the car at running at 80 MILES my RPMS WAS 3200, After changing to Amzoil at 80 MILES RPMS dropped 2700 to me that's a big difference the other oil that I can't say is one of top brands.
Reviewed by
Martin:
I put this fluid in my 2013 Suburban for the 100k fluid and filter change. I have noticed that trans temps are cooler on average, and while towing. I also have noticed improved 2-3 shifts, where it was hesitating before the fluid change.
Reviewed by dk:
the best !
Reviewed by MikeB:
I had a couple of hard shifts and decided it was time for another transmission flush on my Tacoma with 205k. I had 2 previous flushes with Toyota WS fluid which worked great but wanted to try Amsoil this time. 12 quarts and 5k miles later and I haven't had any problems shifting! So far it feels/shifts like it did when it was new. I will be doing a flush on the wife's car soon and will try the Amsoil SS.
Reviewed by Dan:
I drained and refilled 4 times, driving a few days in between each change. It cleared up the shuddering on my Honda that has 240k miles, giving the transmission a new lease on life.
Reviewed by B. Nasty:
Looked right, smelled right, great service and website. My Duramax and Allison seemed happy in the short term.
Reviewed by Steve:
Added fuel economy and I can feel a difference
Reviewed by kdc:
I have been using Amsoil for 5 years in my 6.7 cummins. Truck runs great. My 2011 ram with 6.7 has 300,000 miles on it. I change the filters every 20k and the Amsoil every 40,000 . The engine has been bullet proof . GREAT PRODUCTD
Reviewed by Spackle:
Full disclosure. I don't know if Amsoil is the best oil on the market because I'm not a chemist. But I do know that I trust the Amsoil brand more than any other in the industry. When it comes recommended by guys that push 2k+ hp through their Cummins, I trust it will be just fine in mine. I will continue to use Amsoil exclusively in every component of my truck because I believe it's the best I can get.
Reviewed by Rich:
Makes the Taurus shift silky smooth!
Reviewed by Rich:
My job requires me to travel extensively, as I traveled from the mid plains through the divide I noticed some harsh shifting, as the Taurus approaching 60000 miles I decided to replace some of the transmission fluid. On the next trip the following week, I was pleased with the reults, Silky is the term I wanna use.
Reviewed by Jake:
Use on every scheduled maintenance
Reviewed by Big Ed:
I spent $6000.00 to make sure my Allison will handle 1000+ plus horsepower and 1600+ lbs/ft of torque and so far Amsoil OE trans fluid has not let me down!! I change my fluid every 50.000 miles and it comes out looking just like it went in, trans performs exactly like it should! I have used Amsoil in this truck since the first time I changed all of the fluids at 25.000 mi. Absolutely flawless performance! 07 (Classic) GMC 2500HD CC with a 6.6L Duramax diesel currently at 700+ hp and 1100+ lbs/ft of torque with 162.000 mi. My son has an 04 GMC 2500HD CC with a 6.6L. Duramax in it with 350.000 mi. and nothing but Amsoil lubricants in it, Stock motor and trans, Body is a little rough, but engine and drivetrain are flawless!!
Reviewed by vwalburn:
When I need a product that you don't need very often, i.e., ATF, I will always go to Amsoil because I can trust the product to be what it is supposed to be and more. I will always trust all their products to not only protect my equipment while it is operating but to protect it while in storage from corrosion.
Reviewed by David:
My trans has over 200k miles on it. After the service (I did myself). the old trans feels really strong. I was having some hard shifting when it got hot. That went away. I should have switched to amsoil 150k ago. I use amsoil in my Harley and Indian too. I use amsoil gun oil.
Reviewed by Mike from Canmore:
This oil is so smooth, after doing the trans flush, The Rav shifting is like when it was new... Great oil....
Reviewed by mstang:
the tranny in my wifes car doesn't shift so hard now.
Reviewed by Daryl:
Used on a fresh rebuild and new converter. Works as advertised no slipping ,chattering. Have only put a few hundred miles on it since, working flawlessly.
I expect great things from amsoil. This was a gift to a family member.
Reviewed by Kenny:
Bought a case of the OE fluid to replace a friends Toyota ATF. I flushed the old out and changed the filter. The old was already burnt smelling and shifting poorly. It has been working fine since it was changed.
Reviewed by Jeep guy:
Used lots of Amsoil products over the years, from my Ford Powerstrokes to my lawnmowers. Always had good use and performance from them. Will absolutely continue using Amsoil products.
Reviewed by Jay:
I am not a chemist or engineer, so I cannot speak as to what's inside the bottle. However I am a mechanic and can speak as to what's inside a engine, transmission or differential. I've used Amsoil on and off over the years alone with other bands of synthetic and conventional oils. I've never used anything that didn't work. However, I've found good oils last longer. Being a fleet mechanic I change a lot of oil and get to see what it looks like under abuse. Amsoil always holds up. That's why I use it.
Reviewed by Ty:
All products are great
Reviewed by Ernesto:
Colorado Duramax 2.8
Reviewed by Kenny:
I've been using the OE ATF on my personal vehicles for several years in the power steering and transmission. It's an affordable alternative to the best grade of Amsoil ATFs. This was used to replace someone else almost burnt fluid. So far it's shifting regular.
Reviewed by gene:
good product
Reviewed by Rob:
Use it in all my vehicles and tractor
Reviewed by Mike:
I have been using this product for years in my 1996 Heritage Softail Classic. I have reviewed the technical comparison reviews and selected Amsoil over your competitors.
Reviewed by James:
This car does not have a dip stick for the ATF and had about 90,000 miles and the fluid had a burn smell and very black. I had it changed even knowing if it had not been changed they felt it was better not to change it and the car runs great. Due to the fact that fluid was so bad I will change it again.
Reviewed by Dale:
I put it in my 100k transmission and hope to get more life due to the superior product
Reviewed by mac:
Used it in my 1998 Mercedes E320 AMG, ssix months ago. Works fine, no problems.
Reviewed by Dev:
Used this in a 2012 Equinox and the shifting is so much smoother now and way better than OE "lifetime" fluid.
Reviewed by MT Red
Yoda:
I have been using Amzoil since the '70s in everything from manual transmissions in WAY below zero temps to 2 cycle oil run at 100 to one when everyone else was fouling plugs having to run 20 to one. No matter what the lubrication requirements, Amsoil has a product for all your needs.
Reviewed by Sam:
Cheaper but reliable product
Reviewed by Topcat:
This is a great product and I use in three of my personal BMW's as well as other vehicle that I service and flip.
Reviewed by Mac:
Using it in my 95 GMC Sierra SLE, V8 1/2 ton. Gas savings have been observed. Smooth response of the transmission.
I will buy the product again.
Reviewed by Jimmy:
Changed out the transmission fluid in my GMC 2500 with the AMSOIL OE. the difference is noticeable with how smooth the truck shifts. Great product
Reviewed by Zman:
I have an 08 Harley Dyna Street Bob & this tranny oil Really helped smooth out my shifting 😎👍🏼
Reviewed by Thunder:
AMSOIL better then the factory brand.
Reviewed by Cat Mechanic:
I wish I would have replaced the OE transmission fluid with this fluid when the truck was new. the OE fluid drained like very old motor oil, the condition of the fluid with only 30000 miles was disturbing (the manufacturer recommends 60000 mile fluid changes.)
Reviewed by Robert:
Use in my f250
Reviewed by Reggie O:
Great products , not just this one but literally they do not make a bad product !
Reviewed by sean:
Haven't had a bad experience yet with any products that i use in all my vehicles from my day to day, my truck, or my track car.
Reviewed by Ram Man:
I finally convinced my son to use Amsoil ATF in his Chevy P/U. He says that it shifts like new, and runs like a top. Good for another 100K miles!
Reviewed by
Ram Man:
I finally convinced my son to use Amsoil ATF in his Chevy P/U. He says that it shifts like new, and runs like a top. Good for another 100K miles!
Reviewed by David:
Great ATF fluid, dealer did transmission fluid swap all I payed was labor since I bought the ATF fluid directly from Amsoil. Shifts smoother, I'm very happy.
Reviewed by Manuel:
Well I am a huge fan of Amsoil and use it in all my cars and trucks front to back. So I decided to use change the Trans oil in my 66 AMC ambassador and I am sure glad I did.
Reviewed by Collett:
The transmission fluid worked great. And I will buy again. Also it was here in 2 days with standard shipping. Happy all around amsoil is a great company. Product and shipping were flawless.
Canada
United States
Transmission Fluid.
They transmission is not working as hard as it had.