Maximum octane?
12-26-2007, 01:06 AM
#16
Guest
Posts: n/a
Hello Group-
I have been doing a roughly 50/50 blend of 100 Torco and 91 Chevron or Unocal. This mixed at the Unocal station in Woodside, Bay Area, CA. $5.35/gal.
This yields about 95 octane RON.
I can say without a doubt my 2007 C4S runs significantly better - punchier, more responsive. Better acceleration.
It is also noteworthy that the insides of my exhaust tips are now honey brown vs. black., especially in terms that this is a street car, my daily driver. I have 9200 miles mixed freeway, canyon and traffic since June*
I propose that raising the octane to a min. of 93 and dilution of the lousy gas we get here in Cali can yield significant engine running benefits..........
I have been doing a roughly 50/50 blend of 100 Torco and 91 Chevron or Unocal. This mixed at the Unocal station in Woodside, Bay Area, CA. $5.35/gal.
This yields about 95 octane RON.
I can say without a doubt my 2007 C4S runs significantly better - punchier, more responsive. Better acceleration.
It is also noteworthy that the insides of my exhaust tips are now honey brown vs. black., especially in terms that this is a street car, my daily driver. I have 9200 miles mixed freeway, canyon and traffic since June*
I propose that raising the octane to a min. of 93 and dilution of the lousy gas we get here in Cali can yield significant engine running benefits..........
12-26-2007, 03:27 PM
#17
Three Wheelin'
Join Date: Jun 2004
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You're assuming that the gas really is 93 octane. In light of the fact that even people that run gas labeled as 91 octane do not get knocking, my guess is that your gas is not really 93. There are many unscrupulous gas stations that water gas down somewhat to make more money.
