Description

The designation 4T (or 4-Stroke) refers specifically to lubricating oils designed for use in the engines of motorcycles, scooters, and other small recreational vehicles that utilize a four-stroke combustion cycle.4T Plus is typically a manufacturer’s or blender’s branding used to denote a premium, high-performance, or advanced synthetic version of their standard 4T oil, often incorporating superior additive technology.

Unlike passenger car engine oils (which are optimized only for the engine), 4T motorcycle oils are unique because they must lubricate three distinct, critical components simultaneously:

1. The Engine: Lubricates the piston, cylinders, and valvetrain, requiring strong anti-wear and thermal stability.

2. The Gearbox: Lubricates the gear sets, requiring high film strength (Extreme Pressure or EP properties) to protect against high shear forces.

3. The Wet Clutch: Provides the correct friction characteristics to allow the clutch plates to engage and disengage smoothly without slipping or grabbing.