How much does outside temp alter fuel mileage?
We have been noticing our fuel mileage dropping and the only real difference is the temps we have been running in... Sometimes all the way down to -30!! Would putting a barrier up in front of the radiator (to maintain a warmer engine temp) help? Or does engine running temp make much difference?
Thanks in advance for any answers!
Well I think we found the problem... We ended up getting some codes (check engine lights) and it turned out to have a problem with the DEF stuff.. Husband can explain it better... But that is ow fixed, and our fuel mileage is getting back where it should be, or at least was running before...
Thanks for all the replies!!
Is this a worthwhile discussion?