"that use of the necesary higher octane in a higher compression engine is, of course, an advantage buttttttttt use of higher octane then necessary in a lower compression engine can even be detrimental"
Agreed.
The only way to take advantage of the power POTENTIAL of high octane is to have a high compression engine (8.8:1 compression ratio or higher) in a vacuum advance inginition system. However, even that is debateable in modern vehicles.
My 3.0 Duratech engine has a 10:1 compression ratio with electronic controlled ignition. I have noticed no differance in mileage or power when using the 91 octane instead of Ford's recomended 87 octane.
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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