Mobil 1™ Advanced Fuel Economy oils are fully synthetic motor oils engineered to deliver outstanding engine protection and fuel economy benefits. The low‐viscosity, advanced full synthetic formulation can help to increase engine efficiency and improve fuel economy versus higher viscosity oils.

With Mobil 1 Extended Performance synthetic motor oil, you get proven protection up to 20,000 miles, guaranteed. It's an advanced full synthetic formulation and offers outstanding all‐around protection that outperforms our synthetic blends and many of our regular full synthetic motor oils.

Yes, synthetic oil is better for your engine than conventional oil. Although conventional oil (i.e., mineral oil) can provide adequate lubrication performance, it can't compete with the overall engine performance and protection provided by synthetics.

The multigrade 5W30 engine oil is a light-duty oil that works both for petrol engines as well as diesel engines. The 'W' in the 5W30 stands for 'Winter'. The numbers represent the grade of viscosity of the engine oil.

Better protection Using full synthetic motor oil results in better fuel efficiency, more horsepower, and improved wear protection.

It protects better, performs better, and lasts longer, and it's no longer made with a chemical compound that could hurt older vehicles. Modern synthetic oil is safe to use in all types of vehicles, ranging from new purchases to classics to aging not-so-classics.

6 Signs Your Car's Oil Needs Changing

1. Check Engine or Oil Change Light. The most obvious alert that there's an issue with your oil will come from the car itself.
2. Engine Noise and Knocking.
3. Dark, Dirty Oil.
4. Oil Smell Inside the Car.
5. Exhaust Smoke.
6. Excessive Mileage.
7. Change Oil Promptly.

For those who use synthetic oil, you can change it every 5,000 miles or at least once a year. If you still have questions or if you would like to make an appointment to have your oil changed, the friendly staff at My Mechanic will be happy to answer all your questions or make an appointment that is convenient for you.

Does synthetic oil last longer than conventional oil? In general, yes, synthetic motor oil provides longer intervals between oil changes, but it depends on the brand of oil you use. Certain brands recommend you have your oil changed every 3000 or 5000 miles. Other recommendations range from 7500 to 20,000 miles.

Answer: If your car uses conventional motor oil, such as 5W30 or 10W30, we recommend changing the oil every 3,000 miles or 3 months. If your car uses synthetic oil, we recommend an oil change every 5,000 miles or 6 months. You can push that to 6,000 or 6,500 miles if you almost always drive on the highway.

Full synthetic oils do not degrade as fast as synthetic blends. Full synthetic will need to be changed every 10,000 to 15,000 miles depending on your vehicle. While synthetic blend needs to be changed every 5,000 to 7,500 miles.

Thomas' Top Picks for the Best Synthetic Engine Oil 2023

• Best Oil for High Mileage Vehicles - Mobil 1 High Mileage Full Synthetic Motor Oil.
• Best Everyday Oil - Valvoline Daily Protection 5W-30 Synthetic Blend Motor Oil.
• Best Synthetic Motor Oils for Lawn Mowers - Briggs & Stratton 30W Engine Oil.