Quote:
Originally Posted by spiderplant
I once saw a guy in the Lidl car park filling up with a trolley-load of cooking oil.
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That can work, in the right engine. Diesel engines were conceived with the intention that they should tolerate any old muck. However modern diesels are engineered to within an inch of their lives and have various components that don’t like straight vegetable oil, such as common rail injection systems, certain types of fuel pump and engine management computers that are programmed to expect very specific fuel characteristics.
I ran an old diesel Range Rover on about 50% veg for a while. The exhaust smelled like a roadside burger van.