What gas do you use?

[Chewie4299]

Originally Posted by miodculae

What happened to 87 ? Nobody ? Its not like you're harming the engine.

Troll? This may not be an Evo's 4g63 but it's still no bueno if the vehicle is tuned to use premium.

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[Oriental Life]

Originally Posted by drifter

California's highest octane is 91. Should we be using some kinda of octane booster? If so, what is recommended? thanks

They don't work. The best additive I've found over the years of driving was STPs water remover. I saw difference right away on a port injected 2E 2.0L VW/Audi engine. But that was not in US, and the area I lived in had a crappy fuel for injector engines.

[finch1750]

I went with Shell for my first 4-5 fill ups and then have been suing Chevron. Next will be 76. I'll see if any gets better MPG overall than the rest. 91 since I'm in CA btw. I may try Costco too as I read it is from the same refinery as Shell for NorCal.

[soorma]

Originally Posted by Chewie4299

Cali tops out at 91 @ the pump if I'm not mistaken

Yup, I own a Valero and a Beacon and 91 is the highest we go in CA

[Griffdawg]

I been running 87 in my supra for years so I'm sure it will run in frs.

[EsoBOFH]

Originally Posted by miodculae

What happened to 87 ? Nobody ? Its not like you're harming the engine.

In a pinch 87 should work, I don't think there would be any real harm done... the knock sensor will alert the ECU of any pre-detonation occurring, and the ecu will adjust the timing to compensate.. which will affect your power output, but shouldn't do any real physical harm... course, that assumes the ecu works fast enough to counter the knocking and save your crank, rod and piston bearings and journals as well as your valves and injectors from damage caused by pre-detonation.

[EsoBOFH]

Originally Posted by fenton

Using Husky 94, 10% ethanol blend.

ugh.. stay away from that.. why pay premium price, and use ethanol?

Ethanol has 66% of the energy of straight fuel... you're lowering your performance, and/or hurting your fuel economy using ethanol blended fuels...

[Hanakuso]

Originally Posted by Chewie4299

Cali tops out at 91 @ the pump if I'm not mistaken

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Some places have 100 in Cali but those are getting rare. I think a lot of places that are 93 octane have ethanol

[My1FastFRS]

91 for the first tank the dealer filled with. Now 93 only a few places left with it in my area too.

[miodculae]

Originally Posted by EsoBOFH

In a pinch 87 should work, I don't think there would be any real harm done... the knock sensor will alert the ECU of any pre-detonation occurring, and the ecu will adjust the timing to compensate.. which will affect your power output, but shouldn't do any real physical harm... course, that assumes the ecu works fast enough to counter the knocking and save your crank, rod and piston bearings and journals as well as your valves and injectors from damage caused by pre-detonation.

but it also depends on how much you push the car and the type of driving you do, no ? more city stop-and-go vs open highways ?

[maxx]

Do your car right, you bought a nice car.

You really should be burning 93 or 91 if thats all you have available and try and avoid ethanol.

Your car will

[Gaiakai]

1st tank was Shell 91, 2nd tank Chevron 91, next tank will be Arco 91. Trying them out just to see the difference (if any). Will most probably be sticking with Chevron afterwards though.

Also will be trying putting this in:

[mo8ius]

In Oklahoma; only 1 station that I know of sells 93 in the OKC Metro area. I fill up there anytime I anticipate having fun. 91 no ethanol any other time.

[Lonewolf]

Originally Posted by miodculae

What happened to 87 ? Nobody ? Its not like you're harming the engine.

Just kidding, but seriously, don't use 87 unless you hate your car...