58 DeSoto

I'll have to do a actual mpg check next time I fill the tank. That won't happen until next month as I don't do a lot of driving. I'll post it when I get the numbers

Don't think cold temperature is the problem as I live south of Tampa. The numbers didn't get reset just make wild mpg swings over a short distance trip.

2013 SE Hybrid 60k never a problem. My lifetime mpg was at 49.5 . It slowly started. To drop and went to 43 over about 2 years. Then suddenly it dropped from 43 to 38 . Before it took a month to get it to move 1 tenth of a mpg. Now the lifetime mpg changes like the instant mpg . It will go up and down 5 mpg in a 10 mile trip. Also the mpg will drop 5 mpg from sitting overnight. I looked for a fuel leak and haven't found anything. I'm a car guy and have always fixed my own cars. Still has the original battery. Car runs just like it always has. Just the jumping mpg is strange