What grade of fuel are you using with your MS Boosted or not in an NA - Miata Turbo Forum - Boost cars, acquire cats.

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Old 07-09-2009, 07:59 PM   #1
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Default What grade of fuel are you using with your MS Boosted or not in an NA

I'm having a few issues, and it made me wonder about fuel grades. What grade of fuel are you using? Which engine, is it under boost, and what type of climate do you live in?
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Old 07-09-2009, 08:23 PM   #2
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Sunoco Ultra 94

Edit. Sorry I missed the "MS" part of your question.

Last edited by 1redcanuck; 07-09-2009 at 08:59 PM.
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Old 07-09-2009, 08:36 PM   #3
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91 octane around town, Sunoco 100 on track. 16psi. 70-90 temps typical.
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Old 07-10-2009, 12:39 AM   #4
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In So Cal, 91 (R+M/2) for everything from daily driver to AutoX to canyon-carving in the desert. Ambient temps anywhere from the 70s to the 100s.

In Florida, 93, for all the same uses the the obvious exception that we have neither mountains nor canyons here. Ambient temps commonly in the mid to upper 90s.

1.6 engine, running ~13 PSI on a small turbo, with FMIC and half-assed water injection.
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Old 07-10-2009, 12:45 AM   #5
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Chevron 91 for 2 years. Draining the tank and switching to whatever 100 octane is on tap at the track I'm at.
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Old 07-10-2009, 01:18 AM   #6
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Did you ad a drain to your tank, or are you using the pump to evacuate the 91 through the fuel line?
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