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 1,547 reviews
5 star rating
Clean difference
By 
G, 
a 
Verified Buyer 
from 
South Florida 
on 
November 07, 2020
Switched to Amsoil this year. I can tell from my services the oil is a night and day difference as far as it’s clarity compared to Rotella Sythetic. Both oils ran with a 2 micron Amsoil by pass filter. I have been replacing the 2 micron filter every other oil service regardless. Just installed a BANKS wet filter CAI. Interested in seeing if there is any change to the next oil service.
Running this in my 98 Cummins 12valve using Donaldson filter and got 16,000 miles with oil still able to go a bit further. That's towing a 14,000lb 5th wheel for at least half that mileage. Also I lost less oil to evaporation from engine temps towing when I switched from Rotella T6, plus Amsoil doesnt have the french fry smell that Rotella T6 does. Only negative is initial cost, but its more than made up for in time between oil changes.
I have used this oil in all my diesel engines. Including Deere tractors, and duramax pickups. Zero problems in my almost 15 year old engines.
Bottom Line
Yes, I would recommend this to a friend.
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4 star rating
Needs a little work to be perfect
By 
Keith , 
a 
Verified Buyer 
from 
Maine  
on 
November 04, 2020
This 17 lb jug is really handy, however a pour spout with flexible neck like the one used for DEF Fluid would seal the deal on this all in one 10 qt jug.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
By far the best
By 
Dave , 
a 
Verified Buyer 
from 
Oklahoma  
on 
October 29, 2020
Amsoil is the best oil you can get there’s nothing better. If you want your vehicle to last get Amsoil and don’t look back.
I have a 2018 GMC duramax and to protect this engine amsoil was my choice. Protection is critical for these engines allowing them to outlast other diesel engines.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
By 
Anonymous, 
a 
Verified Buyer 
on 
October 18, 2020
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
By 
Anonymous, 
a 
Verified Buyer 
on 
October 17, 2020
Switching to Amsoil in my 2003 Dodge Ram Cummins, was a great decision. This truck had 230,000 miles on the clock. It runs quieter, mileage gained and feels like it has more power. Highly recommend it.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
By 
Anonymous, 
a 
Verified Buyer 
on 
October 16, 2020
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
By 
Anonymous, 
a 
Verified Buyer 
on 
October 16, 2020
Awesome products plus fast shipping. Keep up the good work!
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Nothing better than AMZOIL
By 
JEFFREY, 
a 
Verified Buyer 
from 
Central point  
on 
October 16, 2020
Never had a better product I've used synthecs for year's when I was in the US NAVY back in the 80's as a machinist it was mandatory schooling for oils education AMZOIL is the WORLD'S BEST PRODUCT EVER
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