As most professional auto services know, without motor oil, the parts of an automobile engine become more susceptible to wear and tear, friction, corrosion, and dirt accumulation– all of which can lead to engine failure. Kristen Hall-Geisler explains in HowStuffWorks.com that the type of motor oil used in a vehicle also affects the engine’s efficiency.
The engine oil’s viscosity is an important factor to look into. Since motor oil mainly serves as a lubricant to minimize friction between engine parts, a thicker or a more viscous motor oil than what’s required may do more harm than good. For this reason, many automotive experts tout quality synthetic oil as more beneficial than conventional motor oil.