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90metro · 04-07-2009, 10:25 PM

I never knew that....thanks! My mechanic told me to use high octane for the first two fillups after my major tuneup to blow off some carbon from a valve. I assume it's good for that if nothing else????

David

04-07-2009, 10:25 PM	#10 (permalink)
90metro diggin' the MPGs! Join Date: Dec 2008 Location: Groveport, OH Posts: 26 Snowball - '90 Geo Metro 90 day: 51.78 mpg (US) Mr. Incredible - '91 Metro Convertible LSI 90 day: 36.38 mpg (US) Red Dawn - '90 Geo Metro Blue Boy - '88 Chevy Sprint Metro Thanks: 0 Thanked 0 Times in 0 Posts	improved mpg I never knew that....thanks! My mechanic told me to use high octane for the first two fillups after my major tuneup to blow off some carbon from a valve. I assume it's good for that if nothing else???? David