Quote:
Originally Posted by kevin2323
dont use regular on performance engines...my truck has a 5.7 hemi and i put regular even though midgrade was recomended and I had to flush out my engine a month ago at 30000 miles cuz of all the crap that built up in my engine.
so please use the grade recomended.
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That is a myth. Flush out what part of your engine? Do you mean cleaning your injectors? Or something else? Any fuel will leave carbon deposits on your valves/combustion chamber, it is part of the combustion process. Some may be worse than others if you believe the advertising, but it is definitely not related to octane.
As to the recommended octane, if you really want to save the money and you always take it easy driving, you could use regular. But who buys a v8 camaro to baby it? I recommend premium, for an extra $5 a week to get the performance you paid for in the car seems worth it to me.