Quote:
Originally Posted by UltArc
Not to be rude, but we primarily focus on results that's can be quantified. We enjoy our ABA testing, and hard numbers. Of course on an engine change, it isn't easy to ABA, but getting a baseline fuel range in an area and doing more testing in that spot with later modifications is also a fair way to keep track*. Not meant in a mean or rude way, just letting you know that we (as a forum) put more stock in a scientific method based result than generalizations.
*Also noting other factors, such as wind, temperature, traffic, so on.
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In my AB testing (I won't take the time nor undo the mod to do ABA testing) I gained close to 1 MPG with an under-drive crankshaft pulley on my Mustang. I have the fuel log numbers to show it. Before I installed the under-drive pulley, I had a few 32+ MPG fill-ups, but those were all "one in a row". After I installed the under-drive pulley, I logged 8 consecutive fill-ups over 32 MPG (until Winter fuel and temperatures hit).
To Natalya:
As mcrews said, get a ScanGauge or an UltraGauge. It will help you "adjust the nut behind the steering wheel".
As mentioned in the hypermiling tips, minimize use of the brakes. Your brakes are very efficient at converting gasoline to heat and brake dust.