Not that worried about fuel testing around here. Never had an issue and doubt that local police would ever bother. Have a lot of used oil to mix with some offroad diesel for fuel. What would be a good ratio to use for thinning? 5 gallons(pump diesel) to 1 gallon (WMO) was what I had in mind.
Here is a newer video of the Diesel Tempo. The alternator belt needs tightening often and it's a new belt. Need to tighten it every couple fill ups or @800 miles.
VT247