AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEOQTC (DEOQTC-CA)
946 ml Bottle
Case of 12
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEO1GC (DEO1GC-EA)
3.78 Liter Jug
Each
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEO1GC (DEO1GC-CA)
3.78 Liter Jug
Case of 4
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEOTPC (DEOTPC-EA)
9.46 Liter Jug
Each
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEOTPC (DEOTPC-CA)
9.46 Liter Jug
Case of 2
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEO55 (DEO55-EA)
208 L Drum
Each
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
DEO27 (DEO27-EA)
1041 L Tote
Each
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
4.9 star rating
Based on 1,575 reviews
5 star rating
Great oil for my Duramax with 262,000
By
DAVID,
a
Verified Buyer
from
Michigan
on
October 22, 2024
Ran this oil in 03 Ford 7.3 and didn't touch the motor till 400,000 at 260,000 with my Duramax and haven't touched the motor. Love this oil
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature Series 15W-40
By
BRIAN,
a
Verified Buyer
on
October 21, 2024
The best oil money can buy
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
great wear 247k miles later
By
CRESSMAN,
a
Verified Buyer
from
baldwin maine
on
October 21, 2024
My current truck (2006 lbz duramax) has had Amsoil since its first oil change. Oil has been changed every 25k miles and filter every 10k. At 247,000 miles truck is running strong with zero blow by and burns no oil between changes. My opinion Amsoil makes a great product!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Almost have 200,000
By
MIKE,
a
Verified Buyer
from
Glenwood Iowa
on
October 20, 2024
Have been using Amzoil for over 19 years never a oil related problem. I use Amzoil products in everything that requires oil.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great for cold weather start up
By
WAYNE,
a
Verified Buyer
from
Pennsylvania
on
October 19, 2024
I have been using Amsoil 15-40 diesel oil in my 2007 Chevy Duramax since I purchased new in 2007. Never any issues, no oil consumption and easy cold weather start-up.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great for cold weather start up
By
WAYNE,
a
Verified Buyer
from
Pennsylvania
on
October 19, 2024
I use this in my Kubota diesel tractor in the winter months. Provides easy cold weather start up.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great oil
By
PHIL,
a
Verified Buyer
on
October 17, 2024
I have solely used this oil in my Dodge diesel truck for the last 20 years. Engine still runs like new. It is the only oil for me.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
10/30 Diesel oil
By
ANDREW,
a
Verified Buyer
from
Missouri
on
October 13, 2024
Great product i use amsoil in everything this specific oil i use in my M35A2 Kaiser jeep deuce and half 6×6 keeps engine clean less wear runs smoother great product
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Oil
By
JOHN,
a
Verified Buyer
on
October 12, 2024
It lubricates
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Dayum!
By
DANIEL,
a
Verified Buyer
from
Texas
on
July 08, 2024
Best damn oil in the business. You can really tell the difference. After the oil change. My engines running smoother and quieter.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Diesel oil
By
THOMAS,
a
Verified Buyer
on
July 04, 2024
Great oil. Holds up well. Seems to keep everything running smooth. 160,000mi and no issues so far
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great oil !
By
KYLE,
a
Verified Buyer
from
Barrie
on
July 02, 2024
Great oil even under extreme heat my oil pressure is still good 👍🏼
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Tuff
By
STAN,
a
Verified Buyer
from
Florida
on
July 02, 2024
Amazing, bought this for my military house generator and i am glad I did! Great oil and products!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
My Cummings diesel is very important to me
By
RANDY,
a
Verified Buyer
from
Catonsville, MD
on
June 29, 2024
I have been driving my Cummings powered Dodge since 2013 and protect my engine with the best synthetic oil I can. AMSOIL is my choice.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Diesel oil
By
DAVID,
a
Verified Buyer
from
Saluda, South Carolina
on
June 27, 2024
I use this oil in my 86 Chevrolet G30 Highcube van with a 6.2 non-turbo engine and the oil pressure increased about 5 psi and oil consumption on long trips decreased. Also the oil drips have decreased, cutting down on floor clean up.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
3 star rating
Diesel oil
By
Larry,
a
Verified Buyer
from
MT
on
June 25, 2024
I can not give a review on any oil with very few miles on the vehicle I'm using it in. Get back to me in about !00,000 miles or about 6 or 7 years.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Awesome oil
By
TANNER,
a
Verified Buyer
on
June 24, 2024
High quality oil at an affordable price, definitely recommend to my friends and family. Preferred customer program is awesome too!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Diesel oil
By
CHRISTOPHER,
a
Verified Buyer
from
Oregon
on
June 23, 2024
This oil works great and I like getting it delivered
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Longevity
By
RON,
a
Verified Buyer
from
SoCal
on
June 23, 2024
The oil more than meets expectations and being rated for 25k miles or 1 year is amazing on its own! Being that I drive this vehicle less than 6,000 miles a year, I guess I will be doing the annual oil change! So far, the motor seems to idle and run smoother and not stay in the high pressure state as long! I will definitely buy this again!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Awesomeness
By
RICK,
a
Verified Buyer
from
Belle River
on
June 20, 2024
I’m an 100% AMSOIL user I would not use anything but from my lawnmower to all vehicles and farm equipment
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