A few days ago I was towing my fiver through OK on the way to AR when I stopped at a Loves Travel Plaza to fuel up. I started refueling and then noticed a tag on the pump stating 15 percent biodiesel....
The biodiesel might have loosened up some goop in the fuel tank and lines and was trapped in the filter. Likely hurt nothing, but since it triggered the light, might not be a bad idea to replace the fuel filter. Cheap hedge against any possible problem...........