Premium gas, or?

[michaelahess]

Just a note, higher elevations generally have lower octane levels, around where I live, 91 is the highest, some places only carry 89. This is not an issue as detonation becomes less of a concern the higher the altitude due to less dense air (so I'm told).

At sea level, I'd always use 93. Up here I'm stuck with 91, and unless I can't get it out of town somewhere, 89 will never be used. My Hemi asks for 91, and there is a noticeable difference in performance with 89 or 87 octane, though I do run 87 from time to time with no adverse effects.

When I used to travel a lot, my '01 Celica was noticeably more peppy with a lower grade of gas at sea level, it's always good to know those cross country trips will usually end in a better performing car for a week or two.

[Symbiont]

Unfortunately, you can't really buy 93 in California easily. Time for Torco?

[86design]

you want to put 91 on your FRS/BRZ....I know gas prices are tough at the moment...but don't harm the engine with lesser gas...91!! if you don't want a sports car get a hybrid or something that has 40 mpg...just my 2 cents..

[dookie11]

Originally Posted by 86design

you want to put 91 on your FRS/BRZ....I know gas prices are tough at the moment...but don't harm the engine with lesser gas...91!! if you don't want a sports car get a hybrid or something that has 40 mpg...just my 2 cents..

I use 91 on my dinosaur, so why should you on your brand new car? Don't be a cheapo

[MRZ415]

As of tonight I saw prices near me as
$4.49 for 87
$4.59 for 89
$4.69 for 91...

and $4.29 for Diesel #2 (w00t for my tdi at least for now )

[WhiteGDB]

13.2 gal tank. Avg fill up, 11-12 gal. 12 x $0.20 = $2.40 or $7.20/month if you fill up three times a month. I suggest you skip a lunch each month if you can't afford that.

[ngabdala]

Too much risk with unleaded and you are going to have to use more gas just to get your car to move.

[StuttterButtter]

Originally Posted by WhiteGDB

13.2 gal tank. Avg fill up, 11-12 gal. 12 x $0.20 = $2.40 or $7.20/month if you fill up three times a month. I suggest you skip a lunch each month if you can't afford that.

I'm fine with skipping lunch to drive this car. 7.20= fast food around hear so and its bad for you anyways.

91 in my area is about 3.79$ a gallon and reg is about 3.49

[Turbowned]

Originally Posted by MRZ415

As of tonight I saw prices near me as
$4.49 for 87
$4.59 for 89
$4.69 for 91...

and $4.29 for Diesel #2 (w00t for my tdi at least for now )

$4.05 for 93 in the People's Republic of Massachusetts. Man, you guys really get f****d living in Cali!

[terrypm]

I wonder what the owners manual states about using 100% gas or the blended gas with 10% ethanol? I know the ethanol blended gas has less energy than 100% gas so you get worse gas mileage with it.

Gas prices near me:

10% ethanol
87- $3.28
89- 3.38
91- 3.52

100% gas
87- 3.54
89- 3.79
91- 3.90

[Turbowned]

We don't have that option here... Stuck with 10% ethanol blend. Ethanol has more energy, but burns faster as a result.

[SpeedR]

Originally Posted by Turbowned

We don't have that option here... Stuck with 10% ethanol blend. Ethanol has more energy, but burns faster as a result.

E85 contains roughly 1/3 less energy than gasoline per gallon.


But when you add the 1/3 more fuel needed to make things equal you get other benefits that make a big difference if you are running a turbo car.

[Turbowned]

Originally Posted by SpeedR

E85 contains roughly 1/3 less energy than gasoline per gallon.


But when you add the 1/3 more fuel needed to make things equal you get other benefits that make a big difference if you are running a turbo car.

Ahh, my bad. I knew it was something like that, just got it mixed up.

[DeeezNuuuts83]

Originally Posted by Symbiont

Unfortunately, you can't really buy 93 in California easily. Time for Torco?

That doesn't really matter much, since cars today sold in the U.S. are tuned from the factory to run on 91 octane, not that higher octane is a bad thing.

Originally Posted by MRZ415

As of tonight I saw prices near me as
$4.49 for 87
$4.59 for 89
$4.69 for 91...

and $4.29 for Diesel #2 (w00t for my tdi at least for now )

That sucks. I guess I shouldn't complain about paying $4.41/gallon for 91 octane this morning in Orange County (though I was expecting it to come back down a bit after this past weekend).