Bel-Ray V-Twin Full Synthetic 10W-50 Engine Oil 1 Liter
When cold starts matter as much as sustained high-output protection, 10W-50 gives your V-Twin an edge that 20W-50 cannot. The lower cold-weather viscosity flows to critical engine components faster at startup, while the same SAE 50 high-temperature protection ensures no compromise when the engine is fully up to temperature. All the extended-interval, full-synthetic coverage of Bel-Ray’s V-Twin line โ with faster oil delivery on every cold start.
Key Features
- 100% Synthetic Ester and PAO base fluid โ full-synthetic formulation for large-displacement V-Twin engines
- 10W cold-weather viscosity flows faster at startup than 20W-50 alternatives, delivering quicker oil pressure build at cold start
- Superior film strength provides increased protection for critical engine components
- Exclusive Bel-Ray anti-wear chemistry reduces bearing and valve train wear and prevents piston and ring scuffing
- Highest Viscosity Index for stable viscosity protection across a wide temperature range
- Exceptional shear stability and low-volatility base oils resist viscosity breakdown for longer drain intervals
- Reduced friction decreases engine operating temperature for sustained high-output riding
Technical Specifications
- OEM Part Number: 96915-BT1
- Oil Type: Full Synthetic โ 100% Synthetic Ester and PAO base
- Viscosity: SAE 10W-50
- Rating: API SN / Registered JASO MA2
- Volume: 1 Liter
Fitment Notes
- Compatible with all air-cooled and liquid-cooled Harley-Davidson V-Twin 4-stroke engines requiring SAE 10W-50 or 20W-50 engine oil โ no fitment restrictions
- Recommended by Bel-Ray for Twin Cam and Milwaukee-Eight (M8) Big Twin models
- Preferred over 20W-50 in colder climates or for riders who prioritize faster cold-start oil delivery
- Confirm your engine manufacturer’s viscosity recommendation before use





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