What Is Sae 5W-20?

Mobil 1™ 5W-20 is an advanced full synthetic motor oil designed to deliver outstanding engine protection to keep your engine running like new and protect critical engine parts for up to 10,000 miles between oil changes*.

Is SAE 5W20 a synthetic oil?

At best, all 5W20 motor oils like Royal Purple 05520 API-Licensed SAE 5W-20 High Performance Synthetic Motor Oil (view on Amazon) are a synthetic blend. Higher-Mileage Oil.

What does SAE 5W20 mean?

5W20 Meaning

The term 5W20 describes the SAE class according to which the engine oils were specified. They are multigrade oils with very good flow properties at low temperatures. 5W means that the oil is suitable for winter temperatures down to -35 °C.