Larry West is an award-winning environmental journalist and writer. He won the Edward J. Meeman Award for Environmental Reporting. When oil eventually stops floating on the water's surface and begins ...

Most internal combustion engines rely on motor oil for one reason: lubrication. The oil gets pressurized between 10-70 psi and spends most of its life subjected to roughly 200 degrees’ worth of heat.

I have a 2005 Ford F-250. It has oil coolant problems. I have just installed an oil cooler that I got off of Amazon, and my oil temp is still high. Can you recommend or suggest a good or cooler that I ...