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AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil

Product code : ADPQTC-EA

4.9 star rating Read 315 reviews

Customer Rating

4.9

97% would recommend

  • 5 301
  • 4 11
  • 3 1
  • 2 1
  • 1 1

AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil

4.9 star rating Based on 315 reviews
  • 5 star rating
    Diesel system additive
    By  Ed,  a  Verified Buyer  from  Washington  on  May 22, 2021
    Bought a 2006 Dodge with 5.9 Cummins with 92,0000 miles. Performance was very good at time of purchase. After 2 tanks of fuel using AMSOIL Injector cleaner and Cetane boost, performance increased. Injectors must have had a degree of contamination blocking the nozzles. Much better now.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  MICHAEL,  a  Verified Buyer  from  Nc  on  May 21, 2021
    Best product I have used in all my desiel.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Diesel oils
    By  Eugene,  a  Verified Buyer  from  Brooklyn, NY  on  May 21, 2021
    Good quality oil, oil film is strong.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome!
    By  JEREMY,  a  Verified Buyer  on  May 21, 2021
    Keeps my oil temps cooler in my 6.0l powerstroke and runs a little quieter
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  KEN,  a  Verified Buyer  on  May 21, 2021
    Works good
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Very happy
    By  THOMAS,  a  Verified Buyer  from  Houma, LA  on  April 28, 2021
    Make my truck run better.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    My 1st gen powerstroke loves this stuff
    By  CHRISTOPHER W,  a  Verified Buyer  from  Idaho  on  April 20, 2021
    Been using this for better than a decade. My ‘97 powerstroke runs better on Amsoil than on any other oil I’ve tried. Idles better, has more power and just overall performance is up when I use it. No lie,
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I use nothing but Amsoil products
    By  DEL,  a  Verified Buyer  from  Oregon   on  April 19, 2021
    I use nothing but Amsoil in both our vehicles, my Harley, and all my gas powered tools including my chainsaws. Great product.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Synthetic oil
    By  AL,  a  Verified Buyer  from  Michigan   on  April 16, 2021
    This is the best synthetic oil in market. I’m been using this for very long time on semi trucks and I’m very impressed.
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  • 5 star rating
    Bobcat 753 oil change
    By  CHRIS,  a  Verified Buyer  on  April 15, 2021
    Worked great, nice products
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    #1 OIL
    By  MARK,  a  Verified Buyer  from  Surprise, Arizona  on  April 11, 2021
    Best oil for my dodge ram 2500
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  MATTHEW,  a  Verified Buyer  on  March 31, 2021
    Sent an oil sample in after 15k miles and oil was still performing great
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil for commercial truck
    By  The boss man,  a  Verified Buyer  from  California  on  March 31, 2021
    was having issues with my oil pressure was told I needed a new engine $17k yikes but I was using what ever oil the shop was putting in it so since I've had great results with amsoil on other vehicles I decided to give it try its now been 22k miles and engine is running great I've been using it with an oil stabilizer and no more pressure issues or burning oil. the best part is according to the shop it would last 2mo its been 1-1/2yrs and going strong so yes I recommend this to anyone looking for best diesel oil
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    By  TIM,  a  Verified Buyer  from  norfolk ny  on  March 30, 2021
    used this oil in all my diesel trucks best oil i used tried different oils cant beat Amsoil
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    By  John,  a  Verified Buyer  on  March 26, 2021
    Bottom Line
    Yes, I would recommend this to a friend.
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