I pulled into a Shell gas station today and to my surprise the price was/is 3.59 per gallon. Everyone else is around 3.85/gal. I asked the "pumper" dude why so much cheaper. He said that since it is B20 blend there is not a road tax on it. The state of Oregon is going to do this state wide by the end of the year per our conversation. Long story short I went ahead and had him fill up the main tank. Ended up only costing me 90 bucks. Is running B20 safe for our trucks or should I be worried about problems in the near future?