Join Date: Aug 2016
Location: Near Toronto, Ontario
Vehicle: 2012 SLK55 AMG "SCHWARZIE"
Other Toys: Magnum RT and an ugly Civic
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It may not impact ping etc as the electronics will adjust. I think where the difference may arise is in tailpipe carbon because of the different quality/quantity of detergent, whatever "cleaners" additives they have.
I've experienced an unexplained CEL that at this point I can only attribute to 18 mo worth of hi-test non-top-tier fuel. I may experience MAF issues but I am going back to top tier this summer and ongoing.
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