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rmay, I had to do the same thing 2 winters ago. When I was up in Buffalo visiting family this past holiday season I was using MMO at ~double the recommended dose. It had the same effect as premium in bumping FE. The cost was around $1.75 per tank, or a dollar or so less per tank than 15 gallons of premium based on the current price spread of about 25 cents/gallon between premium and regular.
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2012 Chevrolet Cruze Eco 6MT
Last edited by 99LeCouch; 01-20-2010 at 08:44 PM..
Reason: not specific enough with dates
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