AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid
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Maximum Protection for Every Automatic Transmission
AMSOIL Signature Series Multi-Vehicle Synthetic ATF is specifically formulated to withstand the rigors of heavy towing, elevated temperatures and challenging terrain. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use and abuse.
Proven in a 180,000-mile severe-service taxi fleet trial in Las Vegas, where the transmission's valve body and clutch plates were found virtually free of damaging sludge, deposits and wear.
Key Benefits
- Proven in 180,000-mile severe-service taxi fleet trial
- 83% of original oxidation inhibitors remaining after 180,000 miles
- Passed FZG Gear Wear Test at Stage 12 – the highest stage
- Withstands heavy towing, elevated temperatures and challenging terrain
- Remains fluid in sub-zero temperatures for confident cold-weather shifts
- Nearly identical friction properties as new fluid after 180,000 miles
- Wax-free formulation for extraordinary cold-flow properties
- Broadest OEM specification coverage available
Proven Severe-Service Performance
After 180,000 miles in demanding stop-and-go taxi service under extreme desert heat, independent lab testing revealed Signature Series Multi-Vehicle Synthetic ATF retained 83% of its original oxidation inhibitors. The Aluminum Beaker Oxidation Test (ABOT) confirmed it resisted oxidation longer than required for new fluid to meet the Chrysler ATF+4 specification.
In the industry-standard FZG Gear Wear Test, fluid used for 180,000 severe-service miles achieved a Pass at Stage 12 – the highest stage, exceeding Ford MERCON V and Chrysler ATF+4 specifications for new fluid.
Technical Specifications
| Property | Value |
|---|---|
| Kinematic Viscosity @ 100°C, cSt | 7.5 |
| Kinematic Viscosity @ 40°C, cSt | 38.5 |
| Viscosity Index | 165 |
| Pour Point | -53°C (-63°F) |
| Flash Point | 234°C (453°F) |
| Four-Ball Wear Test (ASTM D4172 @ 40 kg, 75°C, 1200 rpm, 1hr), Scar, mm | 0.39 |
| Brookfield Viscosity @ -40°C, cP | 9,755 |
Industry Certifications & OEM Approvals
GM
- DEXRON II, DEXRON III
Ford
- MERCON, MERCON V
Chrysler
- ATF+4, MOPAR ASRC
Allison
- C-4, TES-389
Toyota
- Type T, T-II, T-III, T-IV
Honda/Acura
- ATF-Z1, Honda 2.0
Mercedes-Benz
- 236.1, 236.2, 236.3, 236.5, 236.6, 236.7, 236.9, 236.10, 236.11
BMW
- 7045E, 8072B, LA 2634, LT 71141
Hyundai/Kia
- SP-II, SP-III, Red-1
ZF
- TE-ML 03D, 04D, 05L, 09, 11A, 11B, 14A, 14B, 14C, 16L, 16M, 17C, 20B, 20C, 21L
Volvo
- 97340, 97341
VW/Audi
- G 052 162, G 052 990, G 055 025
Nissan
- Matic-D, Matic-J, Matic-K, 402
Subaru
- ATF, ATF-HP
Mazda
- ATF-M III, ATF-MV, F-1
Mitsubishi
- SP-II, SP-III, ATF-J2
MAN
- 339 Type V-1, V-2, Z-1, Z-2, Z-3, 339F
Voith
- 55.6335, 55.6336
JASO
- 1A
Broadest OEM Coverage Available
Signature Series Multi-Vehicle Synthetic ATF is recommended for transmissions, hydraulics, power steering systems and other applications requiring: Allison C-4, TES-389; GM DEXRON II, DEXRON III; Ford MERCON, MERCON V; Chrysler ATF+4; Toyota Type T, T-II, T-III, T-IV; Honda/Acura ATF-Z1; and dozens of additional BMW, Mercedes-Benz, Hyundai/Kia, Mazda, Mitsubishi, Nissan, Subaru, Volvo, VW/Audi, and ZF specifications.
Pros and Cons
Pros
- Proven in 180,000-mile severe-service taxi fleet trial
- 83% of original oxidation inhibitors remaining after 180,000 miles
- Passed FZG Gear Wear Test at Stage 12 – the highest stage
- Withstands heavy towing, elevated temperatures and challenging terrain
- Remains fluid in sub-zero temperatures for confident cold-weather shifts
- Nearly identical friction properties as new fluid after 180,000 miles
- Wax-free formulation for extraordinary cold-flow properties
- Broadest OEM specification coverage available
Cons
- Premium Investment: Higher initial cost compared to conventional or "shelf-brand" synthetic oils.
- Limited Local Retail: Primarily available through authorized dealers and specialized synthetic outlets. National Synthetics is a local stocking dealer. Call 1-678-944-8816 to confirm in-stock items for same-day local pickup.
Order Through Your Independent AMSOIL Dealer
Get proven severe-service protection for your transmission. As your Independent AMSOIL Dealer, we provide expert guidance and competitive pricing on all AMSOIL products.
Independent AMSOIL Dealer #1858536
Shipping & Returns
Fast, Reliable Shipping
- Free standard ground shipping on orders of $100 ($130 in Canada) or more.
- Orders under the threshold ship for a flat $9.99 ($12.99 in Canada) freight charge.
- In-stock items typically delivered in two to three business days.
- U.S. and Canada only — no shipments to PO Boxes.
30-Day Return Policy
- Return unopened, currently marketed products within 30 days for a full refund (minus freight).
- Exchange unopened products within 90 days with no restocking fee.
- Special-order items are non-returnable.
- Returns are handled directly by AMSOIL.
Frequently Asked Questions
Signature Series Multi-Vehicle ATF covers the broadest range of OEM specifications available, including GM DEXRON II/III, Ford MERCON/MERCON V, Chrysler ATF+4, Toyota Type T through T-IV, Honda ATF-Z1, Allison C-4/TES-389, and dozens of European and Asian specifications. Check your owner's manual and our Product Guide to confirm compatibility.
AMSOIL installed Signature Series Multi-Vehicle ATF in Las Vegas taxi cabs that routinely encountered demanding stop-and-go driving with passengers and cargo in extreme desert heat. After 180,000 miles, independent lab analysis confirmed 83% of original oxidation inhibitors remained, the fluid passed the FZG Gear Wear Test at Stage 12 (highest), and internal components were virtually free of sludge and wear.
Yes. Signature Series Multi-Vehicle ATF is suitable for transmissions, hydraulics, power steering systems and other applications that require any of its listed specifications.
Under normal service, follow your vehicle manufacturer's normal-service drain interval. Under severe service (towing, hauling, commercial use), you can double the manufacturer's severe-service interval in passenger cars and light trucks.
Customer Reviews
See all 921 reviewsThe time is now
Changed transmission fluid in my F150 Powerboost at 39k and immediately noticed smoother shifting and slightly better fuel economy. The truck is also going into electric mode a little more and staying in electric mode a little longer. Don’t wait too long to do yours.
Great product
Great product Amsoil is all I trust in all my vehicles in all applications. These quart bags are a godsend trying to fill front, rear diffs, transfer cases and transmission on my GMC Sierra. Made the job so much easier and no mess or waste.
ATF fluid DEX III
Just changed fluid & filter on my 480LE 2005 Silverado 2500 4WD. Got 118,000 on it, babied by me for the last 21 years. AMSOIL Seems quiet and more smooth first miles. Its had a very loud first gear since new. First gear is straight cut instead if Swirl cut , I am told. Transmission never been apart, other than a billet torque converter about 10 years ago. Original converter was slipping Code P0894. Seems very quiet with the AMSOIL. I will continue to buy from you based on my current experience. Thank you :)
Nice shifting and cooler transmission temperatures.
I saw an oil analysis of various transmission fluids online. Compared to the factory OEM transmission fluid, this provides much more protection.
Good value for a great quality product.
Excellent product at a competitive price providing very good value. This can be said for the entire Amsoil product line. Only wish there were retailers in my area!
Hard shift
Hard shift before the transmission is warm has stopped
BEST AUTOMATIC TRANSMISSION FLUID
I have used this transmission fluid on my 2013 Lexus GS350 from the first fluid change at 40,000 miles. I now have 217,000 miles and the transmission is PERFECT. It is MUCH BETTER than Toyota's WS fluid in my opinion. It is more robust, the inside of the transmission looks like NEW. AMSOIL FOREVER!!!!
2008 F150 transfer case
I’ve been using this for years in my 08 F150 transfer case and it works great.
On the fence, this is a yes
Did a drain and fill on my 2011 Hyundai Elantra, only got about 40% of the fluid changed but the difference is there. Shifts are definitely smoother, impressed. I will do another drain and fill in the spring to get even more of the old maxxlife out of there.
Transmission Love
I have a 2016 EcoDiesel, Amsoil Products are my go to for protecting and performance. I Tow a 7,000lb trailer and want the additional hi-temp protection when towing. I also use 5w-40 6x diesel oil for the same reasons!!
Amsoil signature ATF
Orders always come in fast. After switching to amsoils transmission fluid my truck shifts noticeably smoother. Great product
IMHO the superior ATF on the market
Last a long time and keeps my transmission clean. Great thermal stability.
Might be placebo but feels better
Did a full service on my 7.3 f350. Drain and fill the trans fluid with Amsoil. shifts smooth and confidently. 337k miles going strong. Drives like it's got 50k
AMSOIL Products (ATF Fluid)
I invested in AMSOIL's ATF fluid, because it is excellent. I recently changed the fluid in my Buick Enclave and it shifts extremely smoothly! I would not hesitate to buy it in the future.
Simply the Best
If your looking for a transmission fluid that will keep your transmission better than when it drove off the new car lot then look no further. I don’t know what magic AMSOIL puts in this stuff but my 2009 Nissan Xterra shifts better/ smoother at 177k than when I drove it off the lot with only 5k miles on it. AMSOIL keep up the great work.
New GM/Ford/Allison transmission.
Have heard of problems and changed my fluid to the best and changed my filter at 50k.So far no problems.
Feel the difference
Make the vehicle runs and shifts great
Great Product
Do your new Chevy or GMC 2500/3500 HD a favor and replace the Transfer Case fluid with this stuff! Just compare the additive package this fluid has compared to AC Delco fluid, it's a no brainer.
Great product and packaging.
Love the packing, makes it easy to squeeze in like a capri sun. My transfer case operation is silent and smooth.
ULV 10R80
20k kilometers ago I had my transmission rebuild. So I run all Amsoil in everything accept my transmission until now and right away I noticed smoother shifting and I feel at ease now knowing what fluid is in my transmission. I highly recommend Amsoil on or in everything gear or engine related. Thanks Amsoil!!!;
Instant results!
40,000 miles 2019 Honda Ridgeline 6 speed. Transmission was surging under low load and light throttle, you could see the tach raise and fall a thousand RPM. After doing one drain and fill that has completely gone away. This stuff works!
Brilliant Packaging
The packaging is great! Easy to use and less mess. AMSOIL is the best product based on decades of personal experience.
8l90e shudder
I had a 8l90 shudder issue and with the synthetic Amsoil. Transmission fluid it resolved the problem.
Fantastic ATF replacement for 2019 highlander
This transmission fluid completely fixed all of the symptoms I had with my transmission. At just 30k miles, the transmission in our 19' toyota highlander felt sluggish and almost like it was slipping; especially in 1st and 2nd gear. I looked up common issues and found the UA80F transmission in our Highlander has been having failures documented at very low mileages (around 55k miles). I researched and many other owners found the oem trans fluid may be the contributing factor and a complete fluid replacement may help symptoms and longevity. I purchased 2 gallons and after draining the Trans and refilling, I pulled the cooler line and slowly ran some of the fluid out, while simultaneously refillingbwith the Amsoil ATF. For only 30k miles, it was darker than it should have been, almost a brown color. After the fluid color slowly cleared up, I filled to the proper level. The car could not drive any better now. Shifts are crisp and positive and any feeling the trans is slipping is gone. Feels like a different car. This makes the powertrain feel so much more connected than it did with the toyota oem fluid. Toyota usually has great products, but sadly, they fumbled the ball with this transmission. I would reccomend everyone replace their oem fluid with this ATF. Not only will it likely save the Trans from failure and reverse symptoms I experienced, I have also lowered the transmissions operating temperatures and my city MPG has increased from around 15, now gets around 17mpg. Thats a huge increase for this heavy of an SUV. I have 4k miles on the new fluid and it drives and feels so much like I would expect a Toyota product to drive; nothing like before.
Completed the fluid changes on the truck
I had just had the transmission service of flush and filter done. I then changed the fluids in the front and rear diffs and used this in the transfer case. Thank goodness I did. The fluid that drain out was black as coal. Now I can rest easy knowing the transfer case is running on fresh Amsoil fluid.
Transmission
I use this in my Chevy 2500 HD because I plow and tow and it runs cooler temps on transmission
Transmission fluid
My car transmission was slippery and I change oil from dealership and not working that oil too than I order amsoil it’s best and it’s fixed my problem
Tacoma transmission
Did a transmission flush and filter change in my 18 Tacoma using 12 quarts of AMSOIL signature series ATF and wow. I’ve used other quality products in past in the same manner but this ATF made a noticeable difference in smoother more responsive shifting. Never used it before now, and it will be my go-to from now on.
10 speed
My Silverado 10 speed shifts way smoother and runs cooler since swapping to the amsoil ulv fluid!
Allison loves it!
Changed fluid in my Duramax with Allison transmission and noticed a difference in shifting for the better and fuel mileage increased. Recommend
Awesome
2021 Silverado 1500 8L90, 97000 miles. Had a heavy shudder in transmission, torque converter slipping, RPM’s up and down while driving. Took truck to transmission shop and was told truck needed new transmission and torque converter. $6000 estimate. After researching the issue, changed filter and fluid to the Amsoil fluid. Solved every issue I was having. Transmission performs better, shifts smoother than when I purchased the truck new from the dealership. Made a believer out of me. Amsoil will be the only fluids I put in my vehicles from now on.
OUTSTANDING ATF
This is the second time I’ve flushed my transmission in my 2010 Toyota Tundra TRD 4X4. The first time I flushed the transmission I used the actual WS ATF, it was just fine. But when I used the Amsoil ATF I noticed a small difference for the better. I also replaced the transmission filter and pan (rubber) gasket. The first time I flushed I had 73,000 miles, I now have 130,000. The better from this oil change is, the transmission downshifts to first at 10MPH making left or right turns. Before it stayed in second gear. Also the overdrive snaps to attention! I also noticed a little better fuel mileage especially on the road. I just come off a 1,000 mile road trip visiting family. I have zero complaints. Thank you Amsoil
amsoil always has great products and always shipped fast
been using amsoil for many years. all my vehicles have over 200k miles and going strong. great products and great service
Highly Recommend
Increased my transmissions lifespan, and shifts smoothly.
Fixed Transmission Issues
Use this in our 2013 Elantra with 152,000 miles. Now, no more hard shifts. Excellent Amsoil product as always. I've been a returning customer for many years now for all Amsoil products due to results just like this.
Quiet transmission
I recently purchased a very low mileage 2006 Toyota Corolla that had never had the transmission fluid changed(105k) . It was very noisy and rough shifting .I drained the old fluid and changed the filter and refilled it with Amsoils Signature Series Transmission fluid and wow! What a difference it made, transmission showing 20 degrees cooler( per the trans temp gauge) and is so much smoother and quieter.
Fixed surge
Drained and filled 2015 honda odyssey, had that low rpm surge. Went away with 4 qts, will drain and add 4 more quarts after some miles. Immediately improved driveability.
Great product, just bad shipping!
Packages came to my house leaking. Tried to reach out to customer service three times and never heard back. Otherwise, amazing products from AMSOIL.
Signature Series ATF
I purchased a used 2009 Honda Pilot a few months ago and wasn't long I not only inherited the prior owners problem, but a Honda problem. Long story short, I decided to replace the existing ATF in the vehicle to the best fluid I knew of to help resolve some of the problems. I was a little disappointed my mechanic was only able to replace half the required amount of Amsoil ATF. The fresh fluid hasn't been in there very long but as near as I can tell so far the Amsoil has made a bit of difference as far as eliminating the transmission fluttering I was experiencing. I selected the Signature Series as my plans were to tow my Aluminum boat for fishing as well as other stuff, but sadly haven't been able to so far. My plans are to drain and add more of the new ATF in around 6000 miles to insure the majority of fluid in there is the Amsoil. I have only rated it at 3 temporarily until the majority of the fluid has been swapped to the Amsoil Signature Series. We'll see what happens, no complaints with the product so far.
worth it so far
Changed the differentials and transfer case. Noticeable improvement in quickness and less noise. In addition, "felt" like it was a smoother transfer. Anecdotal at best for the moment. We'll see at the next interval what condition the oil is in. Due to that inspection, I don't think asking for an evaluation before a service interval is quite fair or accurate. That being stated, I am confident it will perform well.
Great products at good prices
I use the full line of amsoil products in my home garage/shop and have been very satisfied with all of them in all of my personal cars, powersports, and customer vehicles.
stopped the Grinding sounds
It has helped quite things down Greatly on cool start ups. Great product.
ATF
Best I can do for now is a four. The transfer case shifts smoother and more quickly. How it will perform over time .....no idea. Since it's an Amsoil product I suspect very well. But I can't state that until I see the results over time. You guys really should ask for a review after 6 months or so.
Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.