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Love this product. I’ll be putting it in my Ram next. Smoother shifts. Love Amsoil
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature Series Diesel Amsoil 5w40
By 
ROBERT, 
a 
Verified Buyer 
on 
May 24, 2022
Awesome oil
Recommend to use in the 6.7 Powerstrokes
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Improved shifts at all temps.
By 
Old School Fast, 
a 
Verified Buyer 
from 
San Diego  
on 
May 10, 2022
Better feedback from the shifter. No more notchiness. Would highly recommend to anyone wanting a positive enhancement to their shifting feel.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
First Experience
By 
LEONARD, 
a 
Verified Buyer 
from 
El Paso , Texas  
on 
May 10, 2022
This is my first use im putting it in a Jasper Remanufactured transmission 6 speed Ford . I’m looking forward to the superior results plus I’m putting it in my transfer case
What a difference, just like I had it rebuilt. Thanks Amsoil.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great stuff
By 
SEAN, 
a 
Verified Buyer 
from 
Scituate Ma  
on 
May 07, 2022
I swear by Amsoil
..all I ever use
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
3x5 Flush
By 
JOHN, 
a 
Verified Buyer 
from 
Los Angeles 
on 
May 05, 2022
Amsoil came to be as their transmission fluid gave them notoriety. Let’s not forget.
Was using my manufacturers oem ATF and it was fine. But even with 3 changes over 85,000 miles which is extra the oil was getting dirty quick. Probably due to fact the transmission holds 8 qts but only 3 can be drained leaving a lot of old oil. Also my trans runs very hot.
Did 5 3 qt flushes and transmission oil was good as new. The car has super smooth shifting now, far smoother than before. Almost feels like the transmission isn’t even shifting.
I have heard that in some cases the shifting becomes harder. Due to less friction, however wasn’t the case for me and I am fairly satisfied by the performance. Actually feel it has restored performance and equally probably returned to its epa estimated fuel economy.
Got to keep those fluids fresh
Hoping with higher temperature capabilities the oil will remain fresh and properly lubricate.
Had my transmission rebuilt and used the best oil on the market. Didn't do anything to the engine but after the rebuild the engine felt like it had grained monstrous horsepower. Got a ticket on its maiden voyage. Always had good relations with Amsoil and their long list of products. Shipping was fast and checkout was easy on the website. Namaste
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Holy Shift
By 
APEXSRT, 
a 
Verified Buyer 
on 
April 29, 2022
I am unsure of the brand which was in the gearbox beforehand but the difference in shifting effort was immediately noticeable and got even better after driving a bit. This was my first time using Amsoil but I do not feel the need to try anything else as I have done in the past. Hands down best shifting experience in a manual Hellcat!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature Series Fuel-Efficient Synthetic Automatic Transmis
By 
Moe, 
a 
Verified Buyer 
on 
April 24, 2022
Excellent product. Highly recommend!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great oil
By 
RICK, 
a 
Verified Buyer 
from 
Sault Ste Marie  
on 
April 24, 2022
Did an Kim change, filter and BD Pressure enhancer valve. Truck shifts and runs better and stronger than before in stock mode
Recently changed the ATF & filter in my CX5 with a little over 100K kilometers to the Signature Series Fuel Efficient ATF. Shifts are now smoother than butter. If I wasn't watching the tach, I honestly wouldn't even know when the shift happened. Awesome product, wouldn't expect anything less from Amsoil.
Our 2011 Hyundai Sonata GLS (purchased new) was my first opportunity to use this product from the very first fluid change. Hyundai suggests that it is not necessary to change the ATF, however, at ~107K I am about to do my third change. Some of my "fleet" I purchased new over fifty (50) years ago. I have never had a transmission failure, but considering the relatively small reservoir for this vehicle, I do not want to take any chances. Having used Amsoil products for decades this seemed like a good choice.
Use the product in my six speed Allison transmission. Due a lot of heaving towing and the oil stays clean and no burnt smell. Will use no other fluid
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Excellent product !
By 
JOE, 
a 
Verified Buyer 
on 
April 17, 2022
Skeptical but decided to try it and I love it!! Excellent product does exactly what they say it will do ...transmission in my Chrysler town and country works fantastic very smooth shifting !! Will be putting it in my 2500 Dodge soon !!
I run Amsoil in everything I own. I’m confident that Amsoil is the best product made for my needs. Having that confidence is one reason why I use only Amsoil Signature Series Transmission fluid in my Truck, SUV, and my motorhome RV.
I was running valvoline ATF in my 2005 Solara V6, and I noticed less than 10K miles later, the shifts weren't as crisp I was expecting. They were fine, but I figured it could be better. I did two drain and fills with Amsoil ATF, replacing 75-80% of the fluid in the transmission, and I was amazed at just how much better the shift quality is! The torque converter is so much better at transmitting power to the transmission with this fluid, that I feel myself using a less power to accelerate or maintain speeds on the highway. I noticed a consistent 1-2 mpg increase on the highway as well.
Just for a transmission fluid change, having these results are incredible. Considering the amount of heat the fluid in transmissions are exposed to , it is well worth using the best!
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