Signature Series 5W-50 Synthetic Motor Oil

75% more engine protection against horsepower loss and wear. 50% more cleaning power vs. AMSOIL OE Motor Oil Protects turbochargers 72% better than requiredby the GM dexos1 Gen 2 specification. 28% more acid-neutralizing power than Mobil 1. Trusted by professional engine builders Guaranteed protection for up to 25,000 miles or 1 year