That’s because, before the plant was adapted by humans, it produced a highly acidic oil that was only used to lubricate things like warship engines ... to meet demand for lubricants brought ...

Viscosity is only one aspect of a heavy duty diesel engine oil. There is a complex mixture of various performance additives, coupled with select lubricant stocks that make up the engine oil.

[VIDEO] How to Pick the Right Diesel Engine Oil for a Mixed Construction Fleet ... experience higher average load factors, and have lubrication systems that were designed and calibrated to use ...