Red Fuel

Off-road fuel and red dyed fuel are designed to run on different engines. The sulfur content in red fuel is 500-1000 ppm   Your engine and catalytic converter are designed for fuels with less then 10ppm. If you use those fuels, you will deactivate the catalyst and lead to soot clogging of the converter core.  We see it all the time. Converters deactivated, over heated engines and exhaust systems glowing red hot from all the soot inside them. Often they catch on fire.

The EPA has made it illegal to use any other fuel type then the engine was tested and approved for.  You should also beware of biodiesel. There is issues with the cloud point, cetane number, water content and lubricity.  The majority of engine failures are a result of the fuel used and the condition of the lube oil, not a manufacturing defect.