Signature Series Fuel-Efficient Synthetic Automatic Transmission Fluid
Designed for hard-working vehicles that live in severe service. Handles heat so well, you can confidently double your vehicle manufacturer’s severe-service drain interval with guaranteed AMSOIL protection.
RESERVE PROTECTION AGAINST HEAT AFTER 180,000 MILES
ABOT test performed by independent lab based on total acid number (TAN).
The transmission’s valve body is clean and virtually sludge-free following 180,000 severe-service miles. The clutch plates demonstrated only trace discoloration and earned a rating of "good," the highest possible, for deterioration/wear.
PROTECTS AGAINST THERMAL BREAKDOWN
Formulated with high concentrations of antioxidants, making it naturally heat resistant.
Delivers extraordinary cold-flow properties.
Helps improve shift response, energy efficiency and warm-up times.
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Huntington Beach, Ca
November 29, 2022
It made a world of difference. Shifts better and seems to stay cooler. Used in my 2007 31 foot, E-450 Class C motorhome Torque shift Transmission
Yes, I would recommend this to a friend.
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5 star rating
Dreaded GM 8 speed shudder.
November 27, 2022
My 2019 GMC Sierra 1500 developed the dreaded 8 speed shudder after a couple years and 23,000 miles. I read the GM bulletin and made an appointment with the dealership. They were out about a month and a half. After more research and watching Don Smith’s video I decided to do a complete fluid and filter change. I asked a coworker about whether AMSOIL was worth the extra money and he said it was all his racing friends used. I decided to bite the bulletin and do a complete Amsoil fluid change, engine oil, rear end, and transmission fluid and filter. Flushing the transmission through the cooler lines was a struggle but well worth it. The truck drives better than new. It is quieter and smoother. My wife noticed it immediately. Very happy with my decision to go with Amsoil.
Had this fluid changed for about a month. Can tell my Allison trans is shifting much better so far. I am very happy with the signature engine oil and gear oils I've bought as well. May have to change out my heads soon so I'll know more when I do that.
Changed the ATF on our 2020 Ford Ranger at 20K miles. Got rid of the dreaded lag downshifting in higher gears that most owners complain about. Upshifts and torque converter lockup is much smoother. Amsoil has the best lubricants on the planet. I have converted all our vehicles to Amsoil products. You get what you pay for!
Purchased with 136k and transmission had some shutter and hard shifts. Changed fluid with Max-Life and Lucas Fluid Conditioner, got better but still shutter and erratic shifts. Did a fluid change with Amsoil Fuel-Efficient 10k later and it got way better. Now at 156k did the second change with Amsoil and all trans issues are gone.