Niteo Products Motor Medic M3712 Valve Medic Oil Detergent - 12 oz.

The engine on my old truck is starting to need more than just regular oil. It had started making a weird clicking noise and I was told by a mechanic to try this product. I bought it and I'll be damned if it didn't work. It helped quiet down a lot of noises in my engine. I would highly recommend this product.

Had a misfire on two cylinders. Thought maybe it could be a dirty lifter. Added this product and drove 200 miles then changed the oil. It corrected the misfire, ran really smooth, and my gas mileage increased by 2.5 miles per gallon. I couldn’t be more satisfied with this product, five stars.

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Amazing product! Really impressed! The guy at the auto parts store said if you put this in and it doesn't fix it you need a mechanic. I put it in and it fixed my sticky lifter within 2 days. Wow!

Had a 2003 toyota sienna with 190,000 with noisy valve train. one bottle of this took the noise away.

I added this to my 2006 F150 before my last oil change and noticed that the oil was very dark and thin when drained. I assume that means that it did what it was supposed to do. I will use it again at my next oil change to rid my motor of any residual sludge. I hope my motor will love me for this.

Used as directed, worked great. Would definately use again.

I was hopeful for this product as someone I know claims it works. My engine has 200K miles on it. Runs great except for the lifter noise. I've tried two bottles now and it quiets the engine, but a couple weeks later the noise is back. Maybe you will have better luck, but my advice is don't waste your money.