Royal Purple SAE 0W20 is now available at Pep Boys - Manny, Moe & Jack, the first national retailer to stock it! 0W20 is becoming an increasingly more OE-recommended viscosity. Royal Purple’s API-licensed SN motor oil meets ILSAC GF-5 and Dexos1™* performance requirements. Available viscosities include: 0W-20, 0W-40, 5W-20, 5W-30, 5W-40, 10W-30, 10W-40, 15W-40 and 20W-50 weights. Royal Purple also offers mono-grade motor oils in SAE 30, SAE 40 and SAE 50 weights.