Quote Originally Posted by Mohead1 View Post
..... Oh.....here in the southeast, 93 octane is the norm by the way
Mohead1, one thing I've learned recently is that the ethanol blends that the EPA tries to make mandatory start a process called "phase separation" within a week or two, and besides becoming more erosive one of the results of this process is that the fuel loses seven to eight percent on the octane scale - 93 octane becomes around 85 to 86. Doesn't affect the daily drivers so much, as they are replenishing burned fuel regularly, and their engines may not be as sensitive anyway; but our hot rods that get filled, then may sit for extended periods may well have fuel which is significantly lower quality. Around here finding the stations that offer 92/93 octane that is ethanol free is like finding hen's teeth. What worked in the past may not be viable in our changing world.