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Paulporsche Paulporsche is offline
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Join Date: Mar 2004
Location: Toronto, ON Canada
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Current thinking seems to be that you will be OK w/ CIS if your fuel is less than 15% ethanol. I've used a 10% blend (Sunoco 94 Gold here) for at least 15 years. The only CIS problem I had was recently, and it was almost certainly not fuel related.

You might see a drop in your fuel mileage by about 10%. It would be interesting if you keep track of that and let us know.
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Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9
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Old 09-16-2009, 06:11 AM
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