will this work?

[boxstermao]

a gas station here in manila is selling ethanol blended gas that they claim has an octane of 103. wud this fuel harm my 99 c4 in any way?

[Izzy]

yes, I think there was a write up last month on the Panorama magazine about it, depends on the % blend, but it is not good.

[1999Porsche911]

Up to 10% ethanol is perfectly fine and does slightly raise the Octane level.

[Izzy]

Found it, I think:

http://www.pca.org/tech/tech_qa_question.a...0-EFC6B4339FFE}

and this one:

http://www.pca.org/tech/tech_qa_question.a...0-F7A7600E29DD}

short version picked from the Porsche Club of America site, dated a year ago:

"Ask your dealer to tell you what PCNA's latest official position on E85 is. It could be anything from "it is not approved" (very likely), or "if you use it you void your warranty" (possible), or it could be "it works fine" (extremely unlikely, and if they said so I would not necessarily believe them). Even if I knew their answer, a) it is important that you know where you stand with your warranty at your dealership, and B) Porsche's position on this issue is likely evolving over time.

I doubt that E85 would wreck the fuel system, but it would probably slowly start to gum it up. Ethanol used to attack certain materials in the fuel systems, but E10 blending has been going on for years, and the changes needed to go that far have been made long ago. But the first thing you will notice with more ethanol in the blend is that you will be down on power and down on fuel mileage. There is less energy content per gallon in ethanol than in our familiar blends of gasoline. The ECU in your car will change the ignition timing and the fuel injection duration to retune for it, but if the percentage adjustment is too high, you will get a check engine light coming on, and the car won't run right, if at all. "

[boxstermao]

thanks for your replies appreciate it :)