AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHDQT (DHDQT-CA)
Quart Bottle
Case of 12
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHD1G (DHD1G-EA)
Gallon Jug
Each
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHD1G (DHD1G-CA)
Gallon Jug
Case of 4
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHDTP (DHDTP-EA)
2.5 Gallon Jug
Each
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHDTP (DHDTP-CA)
2.5 Gallon Jug
Case of 2
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHD55 (DHD55-EA)
55 Gallon Drum
Each
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
DHD27 (DHD27-EA)
275 Gallon Tote
Each
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
4.9 star rating
Based on 1,537 reviews
5 star rating
Oil
By
DeLony ,
a
Verified Buyer
on
February 27, 2026
Top quality and fast delivery
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Product
By
JAMES,
a
Verified Buyer
on
February 24, 2026
Great item
Was this review helpful?
5 star rating
Way cleaner oil
By
ANTHONY,
a
Verified Buyer
from
IA
on
February 21, 2026
Oil stays cleaner better oil pressure
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Durmax
By
COLBY,
a
Verified Buyer
on
February 18, 2026
Good stuff. Pretty fast shipping
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Diesel oil SAE 15W-40
By
MICHAEL,
a
Verified Buyer
from
East bay California
on
February 17, 2026
I have 2007 Chevy 6.6 turbo diesel with 160k on it. This is the first time I’ve used AMSOIL I’ve just did the oil change a month ago I’ve noticed i have a little more oil pressure now I’m retired now so it will be a couple of months before I will see how it holds up. I just change the oil in my wife’s xt5 too . In a couple months, I will be happy to let you know how the oil for the gas line and diesel oil worked. As soon as the weather gets better I’m going to try AMSOIL in my 2022 HD street glide As of now I’m going to give it five stars Based on everything, I read about it in the front delivery. If I run into any problems, I will change my status based on the performance. I’ve got a good feeling about this oil
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
The best out there
By
WAYNE,
a
Verified Buyer
from
Sacramento pa
on
February 14, 2026
It’s all I use in all my vehicles
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Best Synthetic Oil
By
PHIL,
a
Verified Buyer
from
Marysville, Wa
on
February 12, 2026
I have been using Amsoil since 1978. I won't use anything else.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great delivery service
By
ANTHONY,
a
Verified Buyer
from
NC
on
February 10, 2026
Love AMSOIL Amy questions they got you covered
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Buy the best
By
BLAIR,
a
Verified Buyer
from
Ponoka ab
on
February 08, 2026
I’m trusting my 2024 6.6 with and oil fully 74000 km so far still purrs
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Very Good Oil
By
MICHAEL,
a
Verified Buyer
from
South Carolina
on
February 07, 2026
I use this oil in my 2021 DD16 Detroit Diesel in my Semi and my 2015 6.7 Powerstroke. It does a superb job in my Semi under very hard conditions so it was a great choice for my Pickup. The engine Manufacturers for both Engines recommend a good Quality 10W-30 oil. I love this Oil in both of my Trucks and will be a AMSOIL Customer for Life!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Best oil on the market!!!
By
JERRY,
a
Verified Buyer
from
Dover, TN
on
February 07, 2026
I've seen my mileage go up and I feel comfortable that my High Output 6.7L F350 has the best protection I can give it. I let the truck tell me when to change the oil and it has been going 10-11K miles between changes. Won't put anything else in it.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Myself and my sons have been using your oil for years.
By
JOEL,
a
Verified Buyer
on
February 07, 2026
Fast shipping and best lubricants money can buy. Everything they make is the best.
Was this review helpful?
5 star rating
The best
By
MATTHEW,
a
Verified Buyer
from
Colorado
on
February 05, 2026
Amsoil!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Oil
By
MICHAEL,
a
Verified Buyer
from
USA
on
February 05, 2026
I use Amsoil for my 2013 6.7L Ram I can travel further with the synthetic, now it’s not cheaply priced but I don’t have a problem with it because the oil is very good. I will be purchasing again.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Amsoil Signature Series 5W-40 100% Synthetic Max Duty Diesel
By
STANLEY,
a
Verified Buyer
from
Thornton, CO
on
February 05, 2026
I need a hard working oil in my truck that I use to haul a 5th wheel. This oil offers great protection.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Duramax
By
TOM,
a
Verified Buyer
from
Detroit
on
January 28, 2026
My 2019 2500 hd Silverado uses only Amsoil
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel
By
Eugene,
a
Verified Buyer
from
NY, Brooklyn
on
January 28, 2026
Best oil quality in market. HTHS is 3.5, minimum required by Ford. It is OK. Recommend everyone.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diese
By
Eugene,
a
Verified Buyer
from
NY, Brooklyn
on
January 28, 2026
Best oil quality in market. HTHS is 3.5, minimum required by Ford. It is OK. Recommend everyone.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
4 star rating
Max-Duty Diesel engine oil SAE 10w-30
By
BRUCE,
a
Verified Buyer
from
Arkansas
on
January 26, 2026
So far so good, I've heard a lot of good stuff about your oil. I hope it's better than the free Tire Gauge that I received with the oil.
This is a carousel of Shop by Equipment slides. Use Tab to navigate through the carousel or the Next and Previous buttons. Use Enter to select a slide.
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.
Gasoline
Diesel
European
High Mileage
Hybrid
Racing
High Zinc
Natural Gas
Motorcycle Oil
Snowmobile Oil
Marine Oil
ATV/UTV Oil
2-Stroke Power Equipment
4-Stroke Power Equipment
View All
