What can I do to help my matrix get above 45MPG regularly? I can get around town 41-43 and on trips (steady state driving) I can break 45 some times. I feel that I am maxing out my driving options. I have a belly pan under the engine (past first axle).
I am thinking about mods that might help.
wheel well covers, what gain could I expect? how should I do them?
My matrix has a fairly flat back, would a tail or smaller mod help?
( Last winter, I took the hub caps off as they would not stay on)
I want any mod to be reversible, so attachments need to be hidden.
What are your ideas?