YAMALUBE 4T 20W40 SEMI SYNTHETIC ENGINE OIL 1 LTR

Yamalube 4T 20W-40 Semi-Synthetic is a high-quality engine oil engineered directly by Yamaha Motor Co., Ltd. Often referred to by factory engineers as a “Liquid Engine Component,” this oil is precisely formulated to match the tighter internal tolerances and specific cooling demands of standard 4-stroke motorcycle engines.

The 20W-40 viscosity is a highly stable, robust grade, making it the ideal choice for air-cooled commuter motorcycles, everyday city driving, and bikes operating in warm regional climates.

Key Features

• OEM Factory Standard: Developed by the exact same engineers who design Yamaha motorcycle engines, ensuring a flawless balance between internal lubrication, friction control, and component longevity.

• Shear-Stable Viscosity: The semi-synthetic formulation prevents the oil from shearing down or thinning out under mechanical stress. It maintains its protective 40-weight film thickness even when the engine runs hot in bumper-to-bumper traffic.

• Smooth Clutch Engagement (JASO MA): Certified under the JASO MA standard to deliver the precise friction coefficient required for wet-clutch systems. This eliminates power-robbing clutch slippage and guarantees smooth, positive gear transitions.

• Advanced Wear Protection: Features an optimized additive package containing oxidation inhibitors, detergents, and dispersants that reduce friction on high-load components like the camshaft, piston rings, and gear teeth.

• Reduces Engine Deposits: Actively prevents the accumulation of carbon, varnish, and sludge within the combustion chamber and oil galleries, preserving engine compression and fuel economy.

• Non-Friction Modified: Purely engineered for motorcycle applications, meaning it does not contain the friction-modifying agents found in passenger car oils that can destroy a bike’s wet clutch.

Technical Specifications

Why Choose Yamalube 4T 20W-40?

1. The Perfect Fit for Commuters: This oil is the absolute benchmark for everyday commuter bikes requiring a thicker startup index, including the Yamaha YBR, Crux, Alba, Gladiator, and similar standard 4T engines.

2. Excellent Heat Management: Air-cooled commuter engines rely heavily on engine oil to dissipate heat. This 20W-40 blend keeps the internal parts thoroughly coated and cushioned when riding under the hot summer sun.

3. Restored Refinement: Switching from a base mineral oil to this semi-synthetic blend frequently rewards riders with a noticeable reduction in top-end mechanical clatter and smoother clutch actuation.

Maintenance Tip

For daily urban commuting and light touring, it is highly recommended to replace Yamalube 4T 20W-40 every 1,200 to 1,500 km to maintain optimum engine cleanliness and gear protection. Always check your oil level via the dipstick weekly, and replace the oil filter regularly to ensure old contaminants do not shorten the life of your fresh oil.