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Originally Posted by Texas Coyote
There was a guy a while back that used a scan gauge on his car and reported a difference in timing advance using premium fuel opposed to regular on the economy thread.
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Quote:
Originally Posted by Daemione
AAaaah . . . now that's really interesting . . . Searching for the info now, not much luck yet. Just need to get my laptop up and running, and I'll be able to check it myself.
If, in fact, a fuel w/ an octane rating greater than 87 allows the ECU to advance timing more, the next question is: Does that actually equate to a more efficient engine? (and of course, is the difference significant enough to offset the increase in fuel price?) No easy way to test that w/out a dyno . . . Maybe an accelerometer like a G-tech is sensitive enough, I dunno.
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Quote:
Originally Posted by Texas Coyote
The post was by DOHCtor on page 8 of "Octane 87 89 91 93 95" Eco FIT. He has all of the results of his findings and proved it to himself and a lot of others. Check it out.
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Here's a link to the post. (Certain people should learn how to post links, ahem...)
Octane 87 89 91 93 95 ???????
Very interesting results indeed! I wonder what it all means though for steady state cruising, which is mostly what I do on my commute.