I have been running an amsoil product in my 08 Toyota Tundra since new. When i say new i mean when the engine had enough km's that it was past the break in point I switched. I ran Amsoil XL for several years at the recommendation of the place i get my oil changes at. Changed it out every 6 months. I am pretty sure Signature Series was never recommend as they would only get my business once per year. Not knowing exactly what Amsoil had to offer I did some further research and discovered this Signature Series oil. I now change my own oil as I am able to order directly from Amsoil. I have been running Signature Series for about 5 yrs now with basically a once a yr oil change. I mainly drive secondary rds but come fall hunting seasons i am all over the backwoods. Here where i live it can get down to -30 at times during the winter. The flow rate is excellent in extreme cold as well as I always watch oil pressure gauge and no matter how cold it seems the needle always jumps up quickly on cold start up. My truck now has 271,000 KM's on it. Even with once a yr oil changes the oil doesn't look alot darker than it did when i changed it the previous year. Great product I can't imagine running a different oil in. I now have my son's truck running on Signature Series as well. I plan on putting 1 million Km's on my truck!
Have used Amsoil on my 2018 WB Hellcat since 1st. oil change with Extremely satisfying results. So happy use it in my Jeep Wrangler as well. Nothing but the best for my vehicles.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
MPG
By 
Frank, 
a 
Verified Buyer 
from 
San Antonio Texas 
on 
November 26, 2018
2017 Tacoma TRD Off Road struggles to get 18mpg. Used Signature Series Synthetic and now getting 20-21mpg.
I'm not sure how you review oil. When I opened container, the oil, was oily. So I put it in my engine. My engine has not blown up, so I assume it's the right oil. I'll keep buying their oil, until it no longer feels oily to the touch straight out of the bottle.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
A well oiled machine
By 
Bill, 
a 
Verified Buyer 
from 
Tampa Florida 
on 
November 21, 2018
Feels and runs smoothly !
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
I would recommend to everyone
By 
Ken L, 
a 
Verified Buyer 
from 
Phoenix 
on 
November 21, 2018
I use Amsoil in everything from my truck to my motorcycle, lawn mowers, generators and anything that takes oil. I also use the oil filters, gear oil, and everything that Amsoil makes.
I highly recommend this product. I only use amsoil products in everything from my compressor to my vehicles. They have done there homework to produce great products.
Trusted product! This particular oil was made for my engine what can you ask more? They took the time and knowledge to make the oil possible for my car... its really a no brainer! Nice to have a compagnie that's back you up!
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