Originally posted by Port:
9.8:1 is the cuttoff for running 91 octane pump gas at sea level. Higher compression than that you need to start thinkin about race fuel. I am not sure what these contours have, I don't have one, YET, but I doubt they require 91 octane unless you are right at sea level. The higher in elevation you are the less air going into your engine wich lowers compression in the cylinder, so you can use cheaper fuel.
SVT Contour:
Compression ratio: 10.0:1
SO are you saying that all of us NEED race fuel? get your facts straight buddy.
And why would you use 91 when you could get 93 or even 94 
~Ryan
1999 T-Red SVT Contour
41k Miles #1701 / 2760
B&M, Custom Y-Pipe, Alpine HU, Pioneer 6x8's & 6x9's
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