My car is a 2007 Toyota Camry. Last year, a drunk driver slammed into the back of it while it was parked on the street. Geico took really good care of it, but on the night of the accident, I noticed some fluid on the ground. I mentioned this to the insurance agent, and suggested it might be a gas leak. The agent said that if it was damage to the gas tank, she could probably smell it.
Before the accident, I was getting around 20-25 miles per gallon, depending on freeway or city driving. After the accident, I am now getting 14-15 mpg.
I have already talked to a repair shop about checking for a gas leak, but they said it will cost $100 for the test alone (they use a smoke machine and dye to detect leaks.) Before I do this, I was wondering: is there anything else that could cause this drop in mpg?
I noticed another thing: when I leave my car parked in a cool place, I lose less gas. When I leave it parked in the sun, I often lose ~1 gallon per 3 days without driving the car. When I leave it parked in the shade, there’s little or no evaporation.