Great stuff

I added this to royal purple 15w-40 that already had 2500 miles on it. It did make an audible difference in how loud the injectors and top end of the motor is at idle after a few drive cycles. With how much quieter the engine is I would say the bottle does as advertised.

I recently spent over 2700 on my 6.0 powerstroke only to have dealership inform me that I have 2 injectors that needed to be replaced as I was a little short on funds I decided to not to have them replaced my truck was running worse than before I had repairs done missing, no power and low mpg needless to say I was not happy my nephew suggested that I try your product WOW what a difference after adding your product the results were immediate engine smooth out power returned and mpg increased 25% your product saved me hundreds of dollars in repairs I will be using it in future oil changes thank you

Great products

Works great! Noticeable difference. Quieted injectors a good bit.

I could definitely tell a difference when trying to start the truck after using Archoil but I had 2 or more bad injectors that were too far gone. I will definitely keep using during oil changes to keep everything healthy from here on out.

I wanted to be pro active in making my trucks components last longer, I read about several different products that claimed to help with cleaning and making lifters quieter, I did a few other mods to my truck first, I installed the following Riffraff Diesel components on my late 1999 7.3 engine first, FRX fuel crossover, HPX oil crossover, all 4 banjo bolts, over boost regulator, air intake heater delete with code cable, I chose to do all these first to try and make my truck quiet down a little, I completed all the mentioned mods and changed my oil using shell rotella t-6 15/40 full synthetic oil and the Archoil additive. I warmed my truck up and drove it, it did not take long for the stiction in my lifters to start clearing, I let it cool and took it thru a few heat cycles, with all the combined components and additive I now have a much quieter Smoother running truck that feels a lot more responsive. I highly recommend all these things as I feel it was money well spent, I use Archoil at every oil change.

Never used this before. Changed my oil and noticed a 2 mpg increase on hwy driving.

Notice improvements within a day