Quote:
Originally Posted by 1000MPH
I've lost almost 2mpg on the exact same trip. The only difference is July vs. December.
Ethanol sucks.
Maybe higher tire pressure in Winter can help? How does that affect snow/ice traction?
Doesn't cold, dense air make the engine more efficient?
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Not efficient, but more powerful.
You get denser air into the engine, so you add more fuel into the engine, so you get more power out of the engine but your fuel economy suffers.
A supercharger does the same thing cold air does, but mechanically and to a much greater magnitude.