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Discussion Starter #1
Does the dealership(s) offer any preventive back side valve cleaning knowing it's a potential later problem? Does any third party
shops offer this service? I know about CRC spraying but concerned about initiating codes with MAP sensors etc.
 

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I am a little curious as to what "potential later problem" is about..
 

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Discussion Starter #3
Just the general build up of carbon and when cleaned out, may damage cylinder walls/cat converters when removed from higher mileage engines. Mine has 10k miles 2017 sfs 2.4l
 

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Hey Toad, where do you spray it into, pull air filter and spray from there? How much of a can do you spray over what duration of time? Is the SFS just idling? Spray it and shut engine off while spraying to let it sit on valves for awhile? Hot engine or cold engine? Thx.
 

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