Castrol 15E24D GTX Classic 20W-50 Conventional Motor Oil 1 Quart High Zinc

Castrol GTX Classic is a high-performance conventional engine oil specifically formulated for push-rod, flat tappet engines and performance cam applications. This 20W-50 formula is blended with high zinc and phosphorus content to help prevent premature aging, wear and metal fatigue on engines with high tension valve springs or performance modifications that create high contact pressure and extreme internal temperatures.

Ideal Applications:

• Classic and collector cars
• Muscle cars and hot rods
• Race cars with flat tappet camshafts
• Vintage engines requiring high ZDDP protection

Key Features:

• Specialized additives containing high zinc and phosphorus for extreme wear protection
• Formulated to maintain a tough and thick oil film even under severe conditions
• Minimal foaming and high resistance to thermal degradation
• API SJ rated for older engines

This new formula with high zinc (ZDDP) content is specially formulated for classic/collector cars with flat tappet cams or performance modified engines. Each bottle contains 1 quart (0.946 liters) of conventional 20W-50 motor oil. Not for use in modern engines with catalytic converters.