Synthetic oils are recommended for use in harder working engines and to assist with gas mileage. While your vehicle may only require conventional oil, synthetic oil is more resistant to breaking-down in harsh winters or hot summers. The oil in your vehicle doesn't just reduce heat and friction in your engine, it also helps collect debris and dirt deposited from moving parts. As synthetic oil does not break down as easily as conventional oil, it can help prevent sludge build-up, improve gas milage, and extend the life of your engine.
1. Refer to your vehicle’s owner’s manual