Ran the car through an automated carwash
The car had slightly less than 1/4 tank...so proceed to go get the car filled up. Put in 20 gallons and the fuel gauge is now only registering slightly over 1/2 full. The gauge is climbing super slow - took over 4 trips (approx. 40 miles) to get it to the FULL mark.
Is this a sign of a failing sending unit(s)?