Quote:
Originally Posted by firehawk618
It's physically impossible for your RPM to MPH correlation to have changed without any modifications *transmission* or clutch slipping *which would not be a consistent 100rpm difference*.
I would place the blame on either the speedometer or tachometer being inaccurate.
Considering the weather you describe and a massive amount of idle time 35Mpg seems pretty good to be honest.
I believe these guys who get north of 50Mpg in their VX or HX are very careful drivers.
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I thought maybe it could do with the drag or something as I went out today and it was back at 2100rpm at 65mph, so I'm not quite sure what to make of that.
I'm aiming for 70+mpg highway on this vehicle, which doesn't seem too far fetched based on what I've seen from others. I was at getting 52mpg in lean burn 4/5th of the way between 65-75mph. Even being in lean burn the whole way would put me at around 60mpg(previous owner supposedly hit 62mpg once) or even a little over which I've heard of others hitting before. I'm "satisfied" with 52mpg considering all I've done so far is change the fluids, but I need to clean up the rest of the engine a bit.
It's kind of a pain to get an "accurate" mpg value without data acquisition, because it gets such good fuel economy you need to drive it forever to get an accurate sample size in gallons, and with the highway MPG rating, that's a hell of ways. I could drive across the entire state of Ohio right now and only use 4.5 gallons of gas doing it. I'm actually slightly undereporting right now too I believe since my tires are slightly larger than stock. I'll have to get some data acquisition and take it out for a few rides and see how it does. I have to go Cincy and and Mid Ohio quite a few times this year, so it will get some trips on it to have as more accurate long data points.