100% SYNTHETIC
Premium Pro oil has 2 grades; 0W-20 and 20W-60. "Engine oil setting" can be done by mixing these 2 types to obtain a specific viscosity to match the tuning level and/or use conditions. (See the Oil Mixture Viscosity Table below.) Oil viscosity can be adjusted as tuners want to reduce friction loss or to maintain sealing action with oil when clearance between parts must be wider, oil viscosity can be adjusted.
Mixture Viscosity Table
HKS motor oil comparison chart
Super Premium PRO is indicated in Blue.
The breakdown of radar chart
Heat resistance |
The rate of oxidation after the engine high-load. * |
Oil film strength |
High temperature high shear viscosity (High Shear Rate at 150°C). * |
Resistance to high-temp deterioration |
Degree of change in kinematic viscosity at 100 ° C after the high-load. * |
Multigrade |
Viscosity index. ** |
Resistance to low-temp deterioration |
Degree of change in kinematic viscosity at 100 ° C after the high-load. * |
Oil life (Daily-use) |
Ability to breakdown dirt (such as soot) and maintain oil performance. |
Costs |
Market price. |
*depends on the quality of base oil.
**depends on the quality of base oil as well as the additive used.
◆HKS Oil series specifications