Last fall my '99 OBW seemed to suddenly suffer a gas mileage drop. At the time I though it might be the switch to winter fuel, and my feelings were more or less confirmed when I got a tank of apparent summer fuel a month or so ago.
In the winter, generally 300-325 miles per tank. Now, closer to 380-400. (I don't count tanks where I was driving on snowy roads)
Do I have a bad sensor or something?
-John O
Yes, there is winter gas and summer gas. Here in upstate NY the mileage difference was very noticeable.
Be ready to lose a few MPG when the only gas avail. has 10% ethanol.
Dave
Hmm, I use E10 all the time and my fuel economy is also worse in winter time. I think there is more to it than just the make up of the gas you are using:
- winter tires have higher rolling resistance
- cold air is denser - more drag
- cold bearings waste more power
- etc...
Same here in CT.
We already do, all year around. 8^(
On Thu, 8 May 2008 14:17:43 -0400, "Dominic Richens"
True! As well as a longer (w/ richer mixture) warmup time, and an overall richer mixture due to the denser cold air.
On the other hand, you'd see summer and winter economy improve with
100% gas! Check the published mileage on E85 vehicles. Two different numbers are published.The folks who still get winter blends see twice the shock as those of us who get E10 year-round.
lost 4 to 6 miles to a gallon on winter fuel.
Summer fuel is back and mileage is back to normal now.
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