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Old 12-18-2012, 09:15 AM   #49 (permalink)
Join Date: Sep 2012
Location: Nashville, TN
Posts: 144

CLaero - '97 Acura CL Premium
90 day: 34.59 mpg (US)

CR-v - '03 Honda CR-V EX
Team Honda
90 day: 26.52 mpg (US)
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Originally Posted by Ardent View Post
A data point of my own:
I believe that the mileage increase is because of the octane reduction caused by adding oil to gasoline. An engine with safe/conservative ignition timing then benefits from the timing "advance" caused by the added oil. I expect that I could see the same mileage increase by more optimally dialing in the timing.
I noticed very similar results in my Acura (2-3mpg gain on longer trips) prior to my VAFC install. I also noted similar gains using ethanol free gas (still 87octane) after my VAFC install, though I've yet to use the combination, as I've been driving the CR-V (replaced my v8 4x4 ram gas guzzler) in order to get a decent baseline on it. Come January I'll have to give it another to around!
'97 Acura CL 2.2L 5spd
'03 Honda CR-V 2.4L EX 4wd Auto
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