A few months ago, I ran a chemical fuel system cleaner from NAPA through my fuel tank. Then I changed the fuel filter and saw some good results.
Lately, occurring over the last month or so, I've noticed some hesitation during hard acceleration on the few times I've driven the M715. Today, I changed the fuel filter and noticed a lot more gunk than the previous filter change which occurred directly after the fuel system cleaner.
Granted, I haven't driven the truck much since it's been cold, but this strikes me as a little peculiar. I suspect this means the tank is on it's way out. Any suggestions? Thanks in advance.