Castrol Power RS V-Twin 4T oil - 1 V-Twin Synthetic OIL 4t 20w50 1qt

Castrol Power RS V-Twin 4T is a full synthetic 20W50 oil formulated specifically for air-cooled V-twin engines found in Harley-Davidson and Indian motorcycles. TriZone technology delivers engine, clutch, and gearbox protection in a single oil designed to handle the demands of V-twin riding.

Features

• 100% synthetic oil for V-twin engines
• TriZone technology protects engine, clutch, and gearbox
• RS formulation optimizes clutch power transfer
• 20W50 viscosity grade
• 1-quart bottle

Specifications

• Brand: Castrol
• Manufacturer Part #: 15D28D
• UPC: 079191261163
• Viscosity: 20W50
• Type: Synthetic
• Volume: 1 quart
• Weight: 1.96 lbs

Fitment

Designed for V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Is this oil safe for my motorcycle's wet clutch?

Yes — the RS formulation is engineered to improve clutch power transfer while protecting wet-clutch systems common in V-twins.

Can I use this in my Harley or Indian?

Yes, this oil is formulated for air-cooled V-twin engines used in Harley-Davidson and Indian motorcycles.

What does TriZone technology do?

TriZone protects three critical areas: the engine, clutch, and gearbox — all in one synthetic oil blend.

What viscosity is this?

20W50 — a common weight for air-cooled V-twins in moderate to warm climates.