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 1,543 reviews
5 star rating
TBN are still strong after 10,000 miles
By 
Terry, 
a 
Verified Buyer 
on 
August 19, 2019
Great product. Still experimenting since installing my by-pass filter system. Oil looks cleaner than before.
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5 star rating
I love the 25000 mile oil change instead of every 7500
By 
Winfred, 
a 
Verified Buyer 
on 
August 19, 2019
Doing good so far, just put in back in June. Seems to be doing good.
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5 star rating
Repeat customer
By 
Mitchell, 
a 
Verified Buyer 
on 
August 19, 2019
Always prompt shipping. Best oil out there
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5 star rating
Use 15/ 40 oil
By 
Sam, 
a 
Verified Buyer 
on 
August 18, 2019
Change oil once a year or 5000 miles
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5 star rating
I will always use AMSOIL oils
By 
James, 
a 
Verified Buyer 
on 
August 18, 2019
I call this real engine oil, I feel that while running my truck hard that AMSOIL oil protecting my engine internals better then any other engine oil out there.
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5 star rating
Signature Diesel Oil
By 
Mark, 
a 
Verified Buyer 
on 
July 22, 2019
The best oil period.
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5 star rating
Will buy again
By 
Kenny, 
a 
Verified Buyer 
on 
July 18, 2019
Great product
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5 star rating
Good product
By 
Fritz, 
a 
Verified Buyer 
on 
July 17, 2019
Engine oil.
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5 star rating
I will continue to purchase
By 
David, 
a 
Verified Buyer 
on 
July 17, 2019
I have used this oil for the past 11 years and by far it is the best that I've come across
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5 star rating
Would recommend this for all 6.7
By 
Mike, 
a 
Verified Buyer 
on 
July 17, 2019
Great products
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5 star rating
yes I will continue to buy
By 
Charles, 
a 
Verified Buyer 
on 
July 16, 2019
great oil
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5 star rating
I Can't Beat It.
By 
Mike, 
a 
Verified Buyer 
on 
July 16, 2019
I use this product in my 13 Frieghtliner with a DD15. 60-70000 km between oil changes. My DD15 does burn or lose any oil, as a matter of fact I don't have to add a drop. My oil pressure is higher before a service then regular brands overall. I can't rave enough about this oil.
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5 star rating
Will buy again.
By 
Byron, 
a 
Verified Buyer 
on 
July 10, 2019
Great oil for my power stroke.
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5 star rating
Measurable advantages!!!
By 
Peter, 
a 
Verified Buyer 
on 
July 05, 2019
Love Amsoil products. I run their lubricants in every oil reservoir in my truck. I don't have a temp gauge on my crankcase oil, but in my transmission, changing to Amsoil brought the temp of the oil down a measurable 10 degrees. that is significant. I find their products well worth the money, their filters well built, and they ship promptly. It's not a hard decision to make.
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5 star rating
Buy again!!!!
By 
Al, 
a 
Verified Buyer 
on 
July 05, 2019
Customer is well pleased with the product!
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5 star rating
Use nothing else
By 
Richard, 
a 
Verified Buyer 
on 
June 30, 2019
Great product great customer service
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5 star rating
Amsoil is quality Oil will buy always
By 
Doug, 
a 
Verified Buyer 
on 
June 29, 2019
I have used Amsoil in my gas vehicles and loved it this is used in my 6.0 Powerstroke will be my first time in my diesel so far it's been 3 months and truck is working great I will reorder for my next oil change and have a better feel for the product
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5 star rating
Fast shipping !
By 
Arturo, 
a 
Verified Buyer 
on 
June 28, 2019
As advertised ,Great products . Fast shipping
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5 star rating
I will continue to use this oil.
By 
James, 
a 
Verified Buyer 
on 
June 26, 2019
The best oil in the business! Keeps my 2004 6.0 running strong. Still running original injectors, high pressure oil pump and head gaskets. I run it 10k with OEM oil filter changes every 5k. Nothing else goes in my trucks!
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5 star rating
100%
By 
Jorge, 
a 
Verified Buyer 
on 
June 25, 2019
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