best engine cleaning products? carbon cleaners

[steven]

what are some good engine carbon cleaning products ie sea foam gum out stp ect what are your views and experience’s with these types of products do they work do they help clean out carbon build up? and if they work who makes the best products??? what do you recommend? are they worth the money?

Topic

[Bill]

I like GM cleens or the Mopar Combustion chamber cleaner. (smells the same) I have seen it work before my eyes.

[Author]

Replies