Originally Posted by suss6052
It's seasonal, so now that we are in the winter time frame (after november usually) they blend in a fuel that vaporizes more readily to aid in cold engine starts, but the additives and the formulation of the gas is less energy dense, and less efficient than the fuel sold during the spring through the fall/ (aka the summer fuel blends).
Is there any way to get the normal (non-winter) gas? I rarely start driving on a cold engine.
On that note, it takes almost 5 minutes for the engine to warm up in this 25 degree weather. Is it better to drive it cold since i'm not getting any "mpg" while sitting there at 0 mph? Or should I warm it up like I have been doing? I thought that colder engine uses more gas.