Best Mileage
#18
#22
Evolved Member
I think they've switched over to the crappy oxygenated and ethanol laden winter gas, because on the long trip to see my family for Thanksgiving, the best I could average was 25.5 mpg. During the summer I made the same trip and averaged 28 mpg!! The only other thing I can think of that might account for the change is that I got a brand new pair of All-Season front tires for the car since then, so maybe they have a greater rolling resistance or something.....
#23
Evolving Member
I think they've switched over to the crappy oxygenated and ethanol laden winter gas, because on the long trip to see my family for Thanksgiving, the best I could average was 25.5 mpg. During the summer I made the same trip and averaged 28 mpg!! The only other thing I can think of that might account for the change is that I got a brand new pair of All-Season front tires for the car since then, so maybe they have a greater rolling resistance or something.....
I know up in Canada winter fuel does affect fuel economy... not enough to care but up here everything is more expensive anyways so i don't think about it. Does the USA change the fuel for winter as well? Cause if so, there would be another reason.
Also, it takes longer for the car to warm up and will burn more fuel to get to the optimal operating temperature which is one of the bigger reasons why fuel economy is affected.
Bearings are colder and tighter thus more resistence... tires are harder.. denser air means more aerodynamic drag... etc... all that stuff adds in there too!
Last edited by captobvious75; Nov 27, 2010 at 01:02 PM.
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#29
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best ever was 31 mpg on stock tune @70 - 75mph. Flashed to GST + Boost Pill flash, and so far my best MPG hasn't gone past 25MPG. Then again, the change over wasn't very long ago, and i've been driving a bit faster 75-80mph. Still having too much fun with the added power to be settled down enough to go for a true MPG run.
I thought I would do good on a road trip I took over Thanksgiving, but several high speed bursts to get around people driving under the speed limit in clear conditions killed the MPG average.
To get good MPGs, I have to go slower than i'm willing to for the time being.
I thought I would do good on a road trip I took over Thanksgiving, but several high speed bursts to get around people driving under the speed limit in clear conditions killed the MPG average.
To get good MPGs, I have to go slower than i'm willing to for the time being.