Premium Gas - Toyota Yaris Forums

marcus · 04-04-2007, 12:39 PM

ok i got to add sumthing here.. first of all i been thru a few cars and going to premium give you not just 3% increase on mileage.. you get a lot more. id say close to 10% and thats measured on a cavalier..which i borrowed for 2 weeks and my celica as well which i had for 6 years..and using premium is cleaner than regular gas..now going to 92 or 94 octane which i have tried as well.. not much difference on mileage compare to premium but then again going higher octane really requires adj ur timing to about 10 -15 degree adv. then ull have better take off..and the rules of engagement is adj ment need the feel as well.. makes sure ur engine is not knockin' other wise ur too advance. retard bit by bit..

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04-04-2007, 12:39 PM	#11
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	ok i got to add sumthing here.. first of all i been thru a few cars and going to premium give you not just 3% increase on mileage.. you get a lot more. id say close to 10% and thats measured on a cavalier..which i borrowed for 2 weeks and my celica as well which i had for 6 years..and using premium is cleaner than regular gas..now going to 92 or 94 octane which i have tried as well.. not much difference on mileage compare to premium but then again going higher octane really requires adj ur timing to about 10 -15 degree adv. then ull have better take off..and the rules of engagement is adj ment need the feel as well.. makes sure ur engine is not knockin' other wise ur too advance. retard bit by bit..