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2nd Generation Specific 1986-1992 Discussion

What Type Of Gas Is Best

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Old 01-13-2005, 05:28 PM
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i was wondering whicxh gas is the best for me to put in my second gen non turbo.

I;ve been hearing both high octane and regular
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Old 01-13-2005, 06:08 PM
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regular, 87/89, low octane is best for a NA
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Old 01-13-2005, 09:47 PM
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yeah my vert ran GREAT with 87 in it
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Old 01-14-2005, 04:57 PM
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Is there a particular reason why 87/89 works better???
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Old 01-14-2005, 06:20 PM
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higher octane fuel burns slower, a NA car does not burn it as efficiently as a turbo car would.
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Old 01-15-2005, 03:33 AM
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so a turbo 2 should run premium?
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Old 01-15-2005, 07:10 AM
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yes
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Old 01-15-2005, 11:36 AM
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Originally Posted by MazdaspeedS591' date='Jan 13 2005, 03:28 PM
i was wondering whicxh gas is the best for me to put in my second gen non turbo.

I;ve been hearing both high octane and regular





Look up the definition of octane. The answer will be very obvious. Sorry..its a "teach a man to fish" thing.



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Old 01-15-2005, 12:04 PM
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The FC-Models from 1985 to 1987 need Regular Gas. 91 Octane

From the Facelift 1988 to end they need all Premium. 95 Octane



Compresson ratio before Facelift N/T 9,4:1 Turbo: 8,5:1

Compression ratio after Facelift N/T 9,7:1 Turbo 9,0:1





We do this so in Germany
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Old 01-15-2005, 12:24 PM
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Just found this link about the octane to compression ratio relationship. Helped answer my question, might help answer a few others.



http://listserv.repp.org/pipermail/gasific...rch/000779.html
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