I finally pulled the trigger and switched to Amsoil. I've been using 15-40 in both my diesel pickups and I'll have a more in depth review once I change my oil again.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Even though it’s more expensive then most it’s a great oil
Great oil for my 2004 Cummins with 200,000 miles keeps the engine running smooth
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
2020- 6.7 Cummins 3'rd Service
By 
GARNET, 
a 
Verified Buyer 
from 
So Cal 
on 
March 14, 2022
Instantly sounding much smoother considering how industrial this engine is as a whole-
Much quicker to build oil pressure than the Rotella with 5k on it with an ambient of 7*F-
Being in So Cal and having a interesting time finding 5w40 approved engine oil,glad to know you guys have it on the shelf- Have purchased a few 2.5 gallon jugs since-
I have a 25 hp LS tractor that I have used the max duty oil in since new and it’s been great. The tractor seems to run cooler than the factory oil and it gets hot in Kansas during mowing season
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Firs time
By 
DANIEL, 
a 
Verified Buyer 
from 
Maiden Nc  
on 
March 13, 2022
For me to be the first time using Amsoil
And rate the product I’ll have to see how looks when I do the oil change again then I can said all good or bad things since I never heard of Amsoil before but l am impressive with some of the challenges they had put against other competitors I hope that Amsoil would be my first and forever oil For all my cars
Great oil, let’s my duramax run cooler than rotela oil and stays clean upto 5,000 miles!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Super product for extreme Minnesota cold
By 
TONY, 
a 
Verified Buyer 
on 
March 09, 2022
Watch out these ram dealers are using 15-40 conventional all year long in the diesel cummings ,motor heats up faster but extremely bad for motor as it doesn't flow . I switched to amsoil immediately much quieter on startup and warmup nice steady oil pressure the whole time
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best oil
By 
TODD, 
a 
Verified Buyer 
on 
March 07, 2022
Started using this on my 07 Duramax and now use it on my 19 Duramax. Just wish I could get a EA filter.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Good
By 
BRUNO, 
a 
Verified Buyer 
on 
March 04, 2022
I’ve done my research on this oil before making a purchase had contacted the number of vendors and watch multiple videos on YouTube regarding testing. I had bought a new turbo for my truck and it was recommended to use Amsoil two pre-lubricate my turbo. Outstanding customer service and the delivery time was top notch
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
great product
By 
oil fanatic, 
a 
Verified Buyer 
on 
February 28, 2022
always checks good with oil analysis even up tp 20,000 miles
Bottom Line
Yes, I would recommend this to a friend.
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4 star rating
Never have the filters for my vehicles
By 
WALTER, 
a 
Verified Buyer 
on 
February 28, 2022
The have the oil for my vehicle but are always out of filters
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great oil used AMSOIL for 19 years. Great for long mileage.
Have two company truck that had a ticking sound. After switching to amsoil , the ticking has gone away. Great oil for all trucks in general. Highly recommended
Quality Product! Excellent delivery, ordered on a Friday and was sitting on my door step Saturday. Just switched from Rotella T6 due to shortage but I believe I’m going to be running amsoil from now on!
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