This all started when my check engine light came on. The oil was down by a quart. Since it was time for an oil change, that was done. Now it has only been 200 miles since that, and the check engine light came on again and it is down a 1/2 quart.
I also have had the knock sensor replaced twice. That is also still showing a problem.
My fuel gauge is also showing some problems.
I was advised to take it to the dealer to see what they can find.
My car has now 102,000 miles on it.