schwarze_crewcab
OBS Enthusiast
After I have been driving for a while and open the fuel cap, I get a woosh of air. I noticed it lloks like this rig has an EVIC system. So, any idea where my problem might be? The cap looked like it may have some sort of vent, but I'm not certain. I would like to fix this, as I wonder if it might help my fuel mileage a bit. Thanks