premium gas?

[SeanZ4]

Dale K, look in your trunk (back one) and you should have a sticker in the middle that says your car has knock sensors etc. I have a 2000 S and it does.

The most we can get is 91. Which really surprises me with all the farm equipment etc. Actually that's just given me a thought. I'm going to check the non-tax co-ops. I'll bet they have higher octane. For those out there that must have the torpedo-juice stuff, why don't you consider your local airport?? I know ours will probably sell the av-gas. So just fill'er up with the blue stuff! (disclaimer: I'm sure this isn't a good idea)

sean

[lifeisgood]

How about a bottle of octane booster add to the tank? Any suggestions?

[tamarsha]

When I had FVD build my ECU mapping I made sure to tell them all of my mods and that run 93 octane exclusively. I assume they tweeked it a little to take advantage of that.

There is one gas station near me that sell 100% gas. I try to go by there when I can. It is a little more expense but if you do the math…

Ethanol has about 75% the caloric value as gas… At most stations, 10% of the gas is Ethanol… that is 97.5% the “power” of 100% gas.

A 280 Hp Boxster S will see a 7 Hp gain running 100% gas over a 10% Ethanol mix. Is that worth an extra $0.10 a gallon or $1.50 a tank? Less than $0.40 / Hp gain. Show me a better deal out there.

[clickman]

I have heard that the ethanol mix is much harder on fuel system components.

[husker boxster]

Originally Posted by clickman

I have heard that the ethanol mix is much harder on fuel system components.

That's an old wife's tale from the problems in the 70's when ethanol first appeared. With 30 yrs of development under their belts, automakers wouldn't put components on their cars that can't handle ethanol.

Kind of like graphite shafts in your golf clubs. People still say they may be inconsistant. Was true when they first came out 25 yrs ago but there's too much technology out there now for that to be true today.

[Brucelee]

I would beg to differ. On brand new cars, ethanol is likely safe and may keep your fuel system cleaner than other mixes.

That said, older cars can have issues. I lost a fuel injector recently (had just moved to Iowa and started using ethanol blend). I found out that the Lexus techs will NOT use ethanol in any older car. Seems like they are tired of replacing fuel systems components on older Lexus cars and don't want that to happen to their own.

Word to the wise.

[tuanle16]

Originally Posted by lifeisgood

How about a bottle of octane booster add to the tank? Any suggestions?

what are poeple's thoughts on this. just adding a bottle of octane booster to fuel? and is fuel injector cleaner an absolute NO-NO?

[blue2000s]

Use premium gas. The engine can't take advantage of an octane level higher than what it was designed for, which is premium.

Porsche allows for the used of injector cleaners with techron but generally discourages cleaners or additives.