Andrew Markel is the editor of Underhood Service magazine. He has been with Babcox Media for 15 years. He is a technician and former service writer and holds several automotive certifications from ASE and aftermarket manufacturers. He can be reached at [email protected]
Andrew Markel discusses the formation of carbon during the combustion process, and how the proper engine oil can prevent sludging in the engine. Sponsored by MAHLE.
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