XADO AntiCarbon - Anti-Carbon Engine Cleaner (320ml) - Car Engine Parts Cleaner, Stuck Piston Rings Treatment, Reduces Noise

This works, but don't use it if there's a lot of carbon buildup. It can make things worse, because the carbon and solvent mixture will get into the piston rings and seize them. Use it on a cold engine; if you do it on a warm engine as instructed, the product evaporates and won't have the desired effect. In my case, the carbon buildup was minimal, but the engine was consuming oil; after treatment, oil consumption was significantly reduced. The photo shows the piston after treatment; it is clear that the carbon deposits have softened and partially dissolved.

Does the job and losens up carbon deposits in the combustion chamber. It won't get rid of it all, you would need to spray another foaming product at the air intakes for the finer cleaning. But for the initial raw cleaning XADO is the best.

Followed directions to a tee and the difference was very marginal. Verified before and after with a borescope. This may work well if there is minor carbon buildup, but not with heavy buildup.

This works excellent in the Ford direct injection gasoline engines

Это работает

I don't believe it helped with the carbon build-up on my piston rings, but it sure can help set the bead on a tire. With a nice little THWUMP sound.

No hubo diferencia en el consumo de aceite, quedo igual

Works. It cleaned most of the stuff out of my motor. It obviously not making the piston factory but I think it cleaner now.

My car was stalling due to oil burning build up. After using this product issue disappeared, does good job cleaning!