944 petrol question
10-30-2003, 06:39 PM
#16
Three Wheelin'
The engine specs for all 1988 and later cars are the same worldwide; not all cars have catalysts, though. The ROW (non-US) cars received a decrease in compression ratio in 1988, so I guess that's why 95/85 is specified rather than the older spec of 96/86. Thanks for the information.
Fuel in the North America gets a single octane rating of (RON+MON)/2, so 96 RON translates to 91 octane, etc. Most jurisdictions sell 87 octane ("regular"), 89 octane ("mid-grade") and 91 octane ("premium"). We in Vancouver are lucky enough to have a local refinery (Chevron) that produces 92 octane premium and 94 octane super-premium.
Fuel in the North America gets a single octane rating of (RON+MON)/2, so 96 RON translates to 91 octane, etc. Most jurisdictions sell 87 octane ("regular"), 89 octane ("mid-grade") and 91 octane ("premium"). We in Vancouver are lucky enough to have a local refinery (Chevron) that produces 92 octane premium and 94 octane super-premium.
