I would think your truck would run it through before it had a chance to cause problems. Outboards, that store fuel for periods of time, are a different problem. I just have to have my carbs redone, you should have seen the pitting in the bowl, and the gaskets were being eaten alive. I run seafoam and stabil, and still had this nasty gas problem. As already mentioned, you can get 100% gasoline somewhere near you, it may be a little out of the way, but worth it in my opinion, espeacially in you outboard tank.