One can run an internal combustion engine with practically any lubricant in its crankcase.
The question is, how long will it run?
During my formative years I acquired a lawnmower engine that no longer had a lawnmower attached.
For reasons only understandable only to a young teen, I performed a "test" on it.
The crankcase oil was replaced with Wesson cooking oil.
The empty fuel tank received a quantity of Coleman camp stove fuel.
I wired the throttle WFO and started her up.
The engine droned on for several minutes while filling the driveway with plenty of noise and the aroma of fried food.
It got boring so I went back inside the house.
A few moments later there was a loud clank that turned my head in time to see the engine cartwheel across the driveway.
The conclusion I drew from the test was not to run an engine on Wesson oil or maybe Coleman fuel but definitely not both!
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