I am the rare person who has the original fuel lift pump at 116,000 miles. I try to exclusively use Chevron from a busy station and use Amsoil Diesel Injector Clean at every fill up since the truck was bought new. No injector issues and no lift pump issues. I carry a spare lift pump just in case, but this stuff is the reason it has not been changed out.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
So far so good
By 
ROBERT, 
a 
Verified Buyer 
from 
So cal 
on 
October 10, 2021
Used two treatments, truck feels good
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Smoke stopper
By 
BRIAN, 
a 
Verified Buyer 
from 
Belle Plaine KS 
on 
September 19, 2021
My truck had been neglected for years, to rich due not having filters changed regularly before I bought it, this has helped clean up my injectors and the rich smoke has stopped
The best diesel injector cleaner on the market, my 400hp engine is quite, non smoking, and runs efficiently (with no knocks) considering the fuel that’s being sold today!
Been using the 2oz for 5gal process for 2 tankfuls about 48 gallons. My mpg went up 2miles per gallon and my horsepower increased. Was having a low rail pressure code P0087 when towing so far I have not had the code since using Amsoil. The Amsoil was suggested to me by a dealership service manager, saying do this for 6 months instead of spending 3 grand on a high pressure pump. So far I have had very good luck with Amsoil. My 3/4 GMC has 170k miles on the engine. My hope is that Amsoil will buy me some more time. I am happy with the results.
Bottom Line
Yes, I would recommend this to a friend.
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4 star rating
Diesel Injector Clean
By 
PHIL, 
a 
Verified Buyer 
on 
August 23, 2021
Have used this in my 2001 F350 7.3 L and it keeps the injectors clean. Also use "All in one" diesel additive because of the Ultra Low Sulphur fuel is not good for older diesel engines.
Try in in my ford F350 and it started running better then before. got better fuel mileage and ran smoother then before. It is also running quitter then before.
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