[AzPete]

Originally Posted by Volvo4Life

The MPG goes down in the winter due to winter blend gas as well.
http://ask.cars.com/2009/02/whats-th...y-cars-pe.html

My comment is towards letting it warm up to operating temps prior to drive it at all. Both of my cars are up to operating temps 5 miles down the road.

The overall goal in the mpg world is to get as much as one can, not just accept it going down because another "thing" causes it to decrease.....