Travis Newhouse—January 16, 2026
Ok, I’ve been a car guy my entire life, working on my own cars keeping them running. I used this stuff on my 2003 trailblazer with the 4.2 inline 6. It has 192k miles on it. And cold start it had a loud lifter tap and a little bit of piston slap as well until it warmed up. The lifter tap stayed (quieter) but was still there with the engine warm. Yesterday morning I changed the oil again. Did the double dose (used the 16oz can). And first start after oil change the cold start tap was 90% gone. Drove it last night and when I got home it was completely quiet at idle warm. This stuff absolutely quieted 90% of the cold start lifter noise, and completely 100% quieted down warm lifter tick. It works amazing and I’ve always been skeptical. Especially something I found on instagram reels. But try it. It really does help a lot, it is expensive but I’ll keep using it with the results. To add, it may be a placebo affect from the lifter tick going away. But throttle response seems improved, and it seems to have gained some power. Not a ton, but noticeable enough to make you happy after your first drive trying this stuff. Read more
Aaron m.—December 21, 2025
10 stars this is the real deal. I put 3 oz in my transmission as directed on instructions and it immediately stopped the shudder that occurred even after a tune. Also I put it in my engine oil and the engine definitely has a smoother feel with significantly less noise. This product is far better than anything related ie (lucas oil) officially have been converted to a believer. Value for money is bar none buy some now, especially if you drive a Silverado with afm and a 6l80/90 transmission this stuff is gold!! Read more
BMW Master Technician—January 15, 2026
I have a 2024 Mustang GT Performance and imminently got 4mpg increase and the engine was A LOT quieter at idle and deceleration. It was also a lot smoother. This stuff really works, I'm not used to that. Usually stuff like this is snake oil. Read more
Vincent Pardo—January 6, 2026
Awesome product. Used it with a new oil change in my car. My car is only a 4 cylinder and sounds like its going to die going uphill but after using and adding some of this. The loud sound uphill is gone like its not having a hard time uphill. Seems like it added more power too. Read more
Satisfied customer—November 9, 2025
Pro lube lowered my idle on my 04 f350 v10 no codes. The truck runs excellent but runs a little rich. The idle allways staying at 1000, I put in less then recommended and it stayed the same, after a couple of days I noticed a tic so I put in the rest of the guart and the magic happened. 3/4 of the quart went into my v10 The tics stopped and an idle lowered. This is now what a well oiled machine sounds like. Read more
Mitchell Fuqua—January 12, 2026
Great product, works well with older vehicles Read more
B. Mccurley—December 9, 2025
This stopped a sticky lifter from making any noise in my 88’ Silverado. I also added it to my 2019 Ford 5.0. The valve train was a little noisy to me. It quietened it right down. Read more
Dallas Grimes—December 5, 2025
This stuff is amazing... Add to oil and trans... My uncle had a Chevy Tahoe 500k+ on it. Always mobile 1, wix filter. It developed a slight knock/tick after that, which would stop after it warmed up.Found this stuff. Added a bit, and it immediately subsided/didn't return. I started running it in my ford Windstar 2001. She purrs like a kitten and shifts like butter after I get er warmed up now. 180k+mi Read more
