What can result from using the wrong type of oil in an engine?

Using the wrong type of oil in an engine can lead to inadequate lubrication, which is critical for reducing friction between moving parts. When the oil doesn't have the correct viscosity or additive package for a specific engine, it may fail to protect the components effectively. This can cause increased wear on engine parts, as they operate without optimal lubrication, potentially leading to premature engine failure.

Furthermore, many manufacturers specify certain oil types to maintain warranty coverage. If the wrong oil is used, it may violate warranty terms, leaving the owner responsible for repairs that might otherwise have been covered. The consequences of using an incorrect oil type can be severe, including costly engine repairs and reduced reliability of the vehicle. Proper oil selection ensures that the engine runs smoothly and lasts longer, highlighting the importance of using the correct oil as specified by the manufacturer.