type of gas....
#1
type of gas....
problem... when i first got my car.. i think it was filled with premium gas.. i think the dealer filled it with premium not sure though... at my first fill up... i filled it up with plus... meaning the second most expensive gas type... the car has been fine for the first 3/4 of the tank... but at the last fourth... sometimes when i come to turn on the car... it makes the coughing noise that cars usually make to turn on and i dont think its a good noise.. I could just be paranoid and this happens to all the cars.. but sometimes it sounds bad and i am worried... anyone experience this??? any suggestions of what i should do.. plz help..
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#3
Re: type of gas....
Actually, the coupe requires 91 octane. The manual says you can put 87 in if you have to, but only put in enough to get you somewhere where you can immediately fill up with 91 or better.
The sedan is supposed to be able to handle 87 for extended durations, but 91 is recommended for performance and efficiency.
BTW, you're not saving any money on these cars by using cheaper gas. The anti-knock sensors retard timing to compensate for the lower octane, and you wind up lowering your power and fuel economy. The savings of the lower grade gas is offset by the loss of fuel economy. And, in your case, possibly by engine damage if you keep running it with those strange noises.
2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter
The sedan is supposed to be able to handle 87 for extended durations, but 91 is recommended for performance and efficiency.
BTW, you're not saving any money on these cars by using cheaper gas. The anti-knock sensors retard timing to compensate for the lower octane, and you wind up lowering your power and fuel economy. The savings of the lower grade gas is offset by the loss of fuel economy. And, in your case, possibly by engine damage if you keep running it with those strange noises.
2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter
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Re: type of gas....
At our pumps up here in Canada, it shows the octane of the fuel. Reg=87, Mid=89, Prem=91, Super Pr.=92,93,94.
Do your pumps show the same? And is super prem. available only in certain areas of the U.S.? Thanks.[img]/w3timages/icons/smile.gif[/img]
<font color=red>GSM</font color=red>
Do your pumps show the same? And is super prem. available only in certain areas of the U.S.? Thanks.[img]/w3timages/icons/smile.gif[/img]
<font color=red>GSM</font color=red>
#11
Re: type of gas....
The pumps all show the octane on a yellow sticker. Federal law.
I've never seen it called "super premium" but in some places I think you'll find Reg=89, Mid=91, Plus=92/93. I think there are still some backwoods places where Reg=85.
2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter
I've never seen it called "super premium" but in some places I think you'll find Reg=89, Mid=91, Plus=92/93. I think there are still some backwoods places where Reg=85.
2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter
#12
#13
Re: type of gas....
I have a gas station in my town that sells 87, 89, and 93 octane. Since I really only need 91 octane, could I fill a tank half full of 89 and half full of 93 to result in an average of 89 octane? Is the octane ratings based on a linear function such that this could be done?
G35 Coupe/Silver/Graphite/6MT/Prem.Pkg./BSM - now (maybe) May delivery.
Doug.
G35 Coupe/Silver/Graphite/6MT/Prem.Pkg./BSM - now (maybe) May delivery.
Doug.
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