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Old 01-03-05, 05:59 PM   #15
2000TLC
IH8MUD Rookie
 
Join Date: Dec 2004
Location: Albuquerque, NM
Posts: 43
Quote:
Originally Posted by
My $.02 ( uninformed) - The ECU might adjust very quickly to the lower or higher octane level just as it does temp/air density ect...( in fact I doubt it measures octane independently [no octane sensor
but calculates it from other known variables) The only area that it probably takes time to adjust to is to driver imputs so that a temporary wild streak or driver change doesn't rapidly alter the vehicle's "feel" to the driver.
I agree with your $.02. I think the ECU would make a quick adjustment for the fuel that a person is using. I do enough city driving, that from stop light to stop light, I do not notice the few horsepower loss that I might be losing with lower octane.
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