This is a long shot, but has anyone ever experienced a very sudden drop in MPG? I have a '01 CVT, and recently went from a usual 47 MPG (its hilly where I'm at), down to a consistant 35 MPG. I was getting 55 MPG before I moved to a hillier part of town, so the drop is really shocking.
I saw this sharp drop immediately after filling up with a tank of 10% Ethanol for the first time, but have had consistantly low MPG two tanks of regular since then. Other strongs seem to indicate that the 10% ethanol fuel is not good for Insights, but I haven't found anything about permanent effects, so I'm wondering if this is just coincidence.
Anybody kow where i might best start loking for issues? Nothing else has changed about my driving, local temperatures, etc. I'm at a loss.
I saw this sharp drop immediately after filling up with a tank of 10% Ethanol for the first time, but have had consistantly low MPG two tanks of regular since then. Other strongs seem to indicate that the 10% ethanol fuel is not good for Insights, but I haven't found anything about permanent effects, so I'm wondering if this is just coincidence.
Anybody kow where i might best start loking for issues? Nothing else has changed about my driving, local temperatures, etc. I'm at a loss.