Been a long time user and most recently in a 2015 Ram eco diesel. About 107,000 miles on it and has never leaked a drop, used a drop nor had any oil\engine related issues. Same with prior 1-ton Dodge dually and Ford F350 diesels. Shipping has always been quick and picking up from Orlando, FL on visits I've found the order ready and the folks helpful.
From cat equipment to my personal duramax this is the only oil I will ever use again! Thank you Amsoil for making a fantastic dependable product! I will be a customer for life
Your oil is better then others that I’ve used so I will continue to use
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Reliable Products
By 
JESSIE, 
a 
Verified Buyer 
on 
September 25, 2022
AMSOIL has been a part of my engine maintenance regimen for many, many years and has always out performed the competition.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Diesel oil
By 
MARTIN, 
a 
Verified Buyer 
on 
September 25, 2022
Great so far!!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Diesel oil
By 
NICK, 
a 
Verified Buyer 
on 
September 21, 2022
Quick delivery can’t beat Amsoil
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Synthetic Diesel Oil
By 
ALBERT, 
a 
Verified Buyer 
from 
Cold Lake, AB 
on 
September 21, 2022
By using this type of engine oil I found that my engine runs cooler, Fuel efficiency has also changed. Engine itself being diesel with this oil the motor runs quieter.
I tow approx 10k lbs pretty consistently (40-50% of my miles) and have always used Amsoil for the extended drain interval. With about 40k mi on my truck and approx 15k miles on my oil, I decided to send my oil to blackstone for analysis. I’ll spare you all of the details but will tell you that they noted that I could safely extend my oil change interval out approx 10k more miles, taking the oil life to 25k miles. While they may be true, I just stick with annual oil changes to keep it simple.
I use the signature series diesel oil in my powerstroke , and i use this oil in our f150 - great oil results in both.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Amsoil Diesel Oil
By 
RICK, 
a 
Verified Buyer 
from 
California  
on 
August 26, 2022
Have never used any other oil in my Duramax and will never. Amsoil makes having an account and ordering online super easy. Use in our Triton V10 motor home, GMC Denali, Jeep Wrangler, ‘05 Duramax, Honda Generator, stihl blower etc. lifer!
Thank you for visiting www.amsoil.com. Certain parts of this website may not function with Internet Explorer. To continue shopping with us, please update your browser using one of the options below.