Until this year, when the SCCA started making us use racing fuel, I used 93
octane
pump gas with no alcohol, and added cheap 30 weight motor oil. 7 oz. to 5
gallons of fuel, to kill off as much octane as I could. Daryl Drummond says
we lose 8HP at the top just by using the high octane fuel.

Lynn E Hanover
lehanover@aol.com

Ken Powell wrote:

While I can't comment on whether you you should intentionally kill
octane, those of you planning to run turbo's should know that adding oil
to the gas WILL kill octane.  However, you have no choice so you need to
minimise the damage.  Some of the high quality 2-stroke oils (Golden
Spectro, which I highly recommend, and Belray) used to claim to actually
increase octane.  I have not raced motorcycles for the last 7 years (I
just got too old and falling off hurt too much) so you should verify this
before making a choice on what oil to mix.

Ken Powell

 
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