Quote:
Originally Posted by Jrboulder
I thought these tools were made so service advisors could sell more unneeded work.
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That is my opinion also.
Modern cars run so cleanly, and modern gasoline is so clean and pure, that I doubt any internal cleaning is necessary or effective unless a significant mechanical problem contaminates the system and makes it get dirty.
On an old carbureted engine yes, but on modern computerized engines? Skeptical.