Easily since they won't mix
because of the heat combustion and also Naptha evaporates more easily/
GasolineGasoline
No, but it helps. Warm oil flows out much more easily.
Air filters have oil in them so that they can more easily catch and hold onto particulates in the air.
on a oil rig boat
Biofuel is made from vegetation and vegetable oil. This is easily renewed when more plants are grown. This should not be at the expense of food production.
Almost all of Canada's exported oil goes to the US. Crude is easily transported by pipelines. See related links.
Oil is a critical part to any engine, without oil, your engine can get destroyed easily and more than likely combust.
Only one you can easily see
YES
The oil filter can be found on the right side of the engine, near the back of the engine. The oil filter is more easily viewed from beneath the engine.