BEL-RAY engine oil "Thumper Racing Synthetic Ester 4T"

15W-50, 4-stroke, semi-synthetic, Ester base
High quality semi-synthetic 4-stroke multigrade engine oil. Combines synthetic esters and mineral base oils of the highest quality, specially developed for today's 4-stroke thumper engines (single cylinder racing engines with multiple valves). Can also be used on 4-stroke motorcycles with dry or wet clutches. Provides maximum wear protection for valve trains, cylinders and pistons and clean deposit control. Delivers maximum engine performance while maintaining consistent clutch performance. Exceeds API SN and JASO MA2 requirements. Protects against viscosity degradation at high temperatures and high shear forces.
Specifications and approvals: API SN, JASO MA-2.

Features:
- eliminates deposits and controls the formation of contaminants
- keeps ring surfaces and grooves free of carbon deposits
- reduces cylinder and ring wear and extends bearing life
- prevents clutch slippage for easily controlled efficient shifting and clutch actuation
- reduction of frictional resistance for maximum performance
- shear stability provides excellent lubrication and oil film strength

Advantages of ester technology:
- significantly surpass in properties all known traditional synthetic oils produced using Group III (hydrocracking) and Group IV (PAO) base oils.
- very good anti-corrosion properties (thanks to the solid oil film, no moisture or air can penetrate, which prevents oxidation and corrosion of metal parts)
- lower evaporation rates and higher flash point temperatures
- excellent properties at extreme temperatures (significantly increases the viscosity index to the base oils, immediate engine starting possible)