Very good oil flows great and provides great cold start up protection!! I highly recommend this oil for any diesel owner!!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best diesel oil on the market
By 
JEFF, 
a 
Verified Buyer 
from 
Central Illinois 
on 
November 27, 2023
I have been using Amsoil products for several years. I started them after watching a Gale Banks video on rear differential covers. I got to watching more Banks' videos and he would mention AMSOIL lubricants and how they help with the longevity of the motors and other mechanicals on vehicles because of their superior protection.
If it is good enough for Gale Banks and his team, it is great for me.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
F250 , 2015 6.7 Diesel- 200k miles
By 
DAVID, 
a 
Verified Buyer 
from 
San Diego  
on 
November 27, 2023
Amsoil speaks for itself . The product is bar none compared to any other oil on the market. I’ve used there oil in several different diesel trucks, absolutely love there products!!! With the cost of diesel trucks and labor. Why not run a superior product in your truck ?!
UPS is junk- they just drop $300 worth of product off ware ever they want, even with detailed instructions!!
Product is great but shipping is getting out of control. It used to be 2 days then it’s 4 my last order was over a week. Get a different shipper or figure it out somehow please this is not good for my customers
first oil change with AMSOIL ,dealer would do oil change with AMSOIL , tryed to pull could void warrenty ,doing my self now ,put in FUMOTO valve should make next one ease
Great products not just the diesel oil everything I own better farm equipment excavation equipment 2 stroke power tools trucks and daily driver all run 100% amsoil signature products...Some I buy from local dealer other products I buy through PC account either way is rewarding 0 complaints...
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature Series Max-Duty Synthetic Diesel oil 5W-40
Recent Re-manufacture 6.7 L diesel installed after required break-in period/ 10,000 miles, switched to Max- Duty 5W-40 for more protection.
From what I am witnessing which appears easier start on cold mornings, quieter sound from engine/ smoother acceleration.
overall, very impressed with the changeover of oil blends
This is a good product I have used Amsoil products before and can tell they are a quality product I believe you get what you pay for and when it comes to your vehicle I try and put quality parts/products in my vehicle.
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