4 and 6 Cylinder Engine Repair Gels

Had morning start-up blow-bys. Watched Youtube and read the blogs. Pulled the trigger and bought the 8 cylinder kit directly from CerTech. Glad I did. During the first tube injection the daily morning blow-bys were less and less often. After the initial first tube oil change (100-200 miles) and the injection of the second and third gel tubes the puffs of noticeable smoke appears to be virtually gone. It works, at least for my car (E38). Happy with the results so bought another kit to keep the wife's car in tune and in shape. Prevention is the best maintenance.

tried it on 2 vehicles one with engine knock other with blowby neither worked the car with blowby 04 altima caught fire eventually

Quieted lifter/valve noise, stopped blow by. It works better than I could of ever expected.

Application: 1982 Mazda pickup with about 120k miles that was running a bit rough and showing some bllowby. Within 800 miles, the motor now runs smoother and there is a bit more power than before. I hope the improvement lasts, but this was money well spent.

Purchased the 4 and 6 cylinder engine treatment. Having previous experience with the product, I am still amazed at how well it works - above and beyond the product claims! I recommend it to any and all skeptics and those in need of an internal engine rebuild!

Works fine

Did not work, waste of money!

It did not work for me..