You probably already know that your car relies on various different fluids to help it run smoothly. Two of the most well-known and recognizable of those fluids are engine oil and fuel, which, in many ...

W-20 engine oil is a lightweight oil that should not be used to replace 5W-30 if the engine does not support it.

Fuel dilution from gasoline contaminating engine oil destroys modern GDI engines by eliminating lubrication, causing metal grinding and failure.

Diesel and gasoline engines might look alike under the hood, but they use oil in very different ways. Gas engines run cleaner, but diesels create much more soot, crank out higher compression forces, ...

A while ago, I accompanied my friend to get his car serviced; he drives a plug-in hybrid while I have an old fuel vehicle. We were both confused at the dealership — it turns out that besides the ...