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Registered
Join Date: Jan 2004
Location: Northern Virginia
Posts: 3,347
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Quote:
Originally Posted by curtisr
The manual in my '87 924s says to use fuel with an octane rating of 87 in North America; however, my '88 manual says 89 octane rating is recommended. Not sure why this would be the case... Any ideas?
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In 1988 Porsche standardized their 2.5L base motor. All ran the same (higher) compression ratio (hence the 158hp us rating vs the previous 147hp rating), necessitating higher octane fuel.
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1970 914-6
Past:
2000 Boxster 2.7, 1987 944, 1987 924S
1978 911SC, 1976 914 2.0, 1970 914 w/2056
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