What gas do you guys recommend for the G35X?
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Just enough octane rating to prevent detonation in your driving. For normal use, go 89 at cold temperatures and 91 when warm. Lots of hills or lugging around a lot of cargo, go with 91 or better.
More octane beyond whats needed is useless and a waste of money, unless your engine has FI.
Actually you get a bit less power with high octane gas when it is not needed. Higher octane gas burns slower. Gas burns faster when closer to detonation.
More octane beyond whats needed is useless and a waste of money, unless your engine has FI.
Actually you get a bit less power with high octane gas when it is not needed. Higher octane gas burns slower. Gas burns faster when closer to detonation.
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FI? fuel injection? i hope you meant something else.
i agree with the rest, but prefer to run higher octane all the time as insurance. modern engines advance timing as necessary to make power, and they make assumptions about octane and take measurements of temperature (both ambient and coolant) to determine how much to advance.
i agree with the rest, but prefer to run higher octane all the time as insurance. modern engines advance timing as necessary to make power, and they make assumptions about octane and take measurements of temperature (both ambient and coolant) to determine how much to advance.
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Originally Posted by Altersys
FI? fuel injection? i hope you meant something else.
i agree with the rest, but prefer to run higher octane all the time as insurance. modern engines advance timing as necessary to make power, and they make assumptions about octane and take measurements of temperature (both ambient and coolant) to determine how much to advance.
i agree with the rest, but prefer to run higher octane all the time as insurance. modern engines advance timing as necessary to make power, and they make assumptions about octane and take measurements of temperature (both ambient and coolant) to determine how much to advance.
There is only so much timing advance you can have.
It is a balance one have to make depending on your driving style. Letting the engine ECU take care of some minor detonations is no big deal.
Originally Posted by dcmidnight
+1 to all of this, I use Chevron premium as well and around the time I switched is when my mileage started going up, coincidence maybe. My biggest car pet peeve is I cant stand hearing people in my office that own $50,000 SUVs bitching about the price of gas and asking me if they can "get away with" putting regular in. All to save a few bucks a tank.
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