As it's been said, most likely the cold weather and winter blend diesel.kawimotoman837;1588197; said:Any thoughts on why my fuel mileage dropped 3 miles and the performance is not what it used to be. Could it be the new diesel. Has anyone else seen this,
It might help a bit if you are running in really cold temperatures, as the grill cover helps to bring and keep your engine at proper operating temperature.crs1369;1604462; said:Can Someone give me the lowdown on using a grille blanket in cold weather to improve miles per gallon? Does it help?