> The new Clean Diesel's aren't very Biodiesel friendly due to .. The only biodiesel restriction I'm aware of in larger (e.g., 3/4 to 1 ton pickups) is relate

> The new Clean Diesel's aren't very Biodiesel friendly due to .. The only biodiesel restriction I'm aware of in larger (e.g., 3/4 to 1 ton pickups) is related to the amount of water bound to glycerin in the fuel. Common-rail injection systems are very finicky and any above-design-limit water can cause corrosion which damages the injectors or fuel pump. My truck is certified for only 5% (B5), newer ones are B20 certified. The only difference is the fuel system. I've not heard of any emissions impacts.