Spectro Golden Heavy Duty Semi-Syn Oil - M/C Semi-SYN HD OIL 20w50 1qt

Spectro Golden Heavy Duty Semi-Synthetic 20W50 oil is formulated for V-twin motorcycles, blending petroleum and synthetic stocks to provide superior lubrication and anti-wear protection. This 1-quart bottle exceeds OEM Harley-Davidson warranty requirements and helps extend engine component life.

Features

• Semi-synthetic blend of petroleum and synthetic stocks
• Anti-wear additives reduce oil consumption
• Formulated for American V-twin engines
• Exceeds OEM Harley-Davidson warranty requirements
• Superior engine protection and extended component life

Specifications

• Brand: Spectro
• Manufacturer Part #: 310312
• UPC: 831556000226
• Viscosity: 20W50
• Quantity: 1 quart
• Weight: 2.0833 lbs
• Container Dimensions: 4 in L × 2 in W × 8.75 in H

Fitment

Formulated for V-twin motorcycles, including Harley-Davidson and Indian Motorcycle engines.

Frequently Asked Questions

Does this oil meet Harley-Davidson OEM specifications?

Yes — Spectro Golden Heavy Duty exceeds OEM Harley-Davidson warranty requirements.

What viscosity is this oil?

20W50 — suitable for most V-twin engines across a wide range of riding conditions.

Is this full synthetic or blend?

This is a semi-synthetic blend combining petroleum and synthetic stocks for balanced protection and cost.

How much oil is in one bottle?

Each bottle contains 1 quart. Check your V-twin's service manual to determine how many quarts your engine needs.