Running a WAI through the wringer

[Project84]

I realize you're using cruise control to keep a steady speed but in real life, I've seen mpg drop using cruise control. I don't think it's highly regarded among hypermilers... they all prefer the good ol' foot. Oh well.

I suggest a heat shield.

Check tire psi before each trip. Make sure its consistant. Highway driving will warm the tires and the psi may creep up on you a bit.

I suggest you do each trip with the engine warm and at a predetermined coolant temp, lets say 180*F starts your trip.

Remember to reset your ScanGauge each trip too!

I suggest you drive a minimum of 5 car lengths behind anyone in front of you at all times. No passing unless emergency.

Do not use A/C.

If your IAT's aren't more than 60*F above ambient, I suggest you mod it until it is 60-70*F above ambient at city speeds.

You've got to figure out if that is your IAT sensor and not just presume. There is no truth in a presumption.

I'm not sure I trust JUST the scangauge either. All of my gaslog entries are my actual miles driven divided by the actual fuel required to fill the tank as observed on the pump or on my reciept. You want ABA, why rely on an electronic device that is doing 10,000 calculations per minute? It would be nice if you could completely top off the gas tank w/ a funnel and a gas can and measure each time how much fuel (by weight or by ml or ounces) it took until it was visible in the fill neck.

How far will your test route be? It must be a substantial mileage if you wish to see any real gain/loss in this test. I suggest 20 miles or more for each trip... and even that is not really enough, but in the efforts to not waste fuel, it should do. I'd prefer to see the testing done over 40 mile (or more) test loops, same day, one test after another as quickly as possible so there are little/no variables in wind, temperature, traffic, etc.

I could probably think of 5 more, but for now, I'll stop.