Re: Buying Fuel & Fuel Additives
Reply #4 –
We don't use additives very often. If the coach is going to sit a while (like last summer, 5 months in rainy Maine or over the winter in storage) when we're worried about algae, etc., we use StarTron or PriD primarily as a biocide. We add it before topping off, then make sure to run the engine, genset, and Aquahot to distribute the additive.
I will say that our '03 with the ISM 450 gets its best fuel economy with B20 biodiesel, followed by regular diesel (when we can find it), and the lowest with ULSD. The downside with the biodiesel is that it drives fuel filter changes since it does a great job cleaning the fuel system and depositing the "grunge" in the filters.
Michelle