Reduces oil consumption. Stabilises the viscosity of the oil. For,constant oil pressure. Visco-Stable also offers outstanding protection,against loss due to mechanical shear of the engine oil under the,hardest running conditions. Prevents engine-oil thinning in the event of frequent cold starts. The,oil consumption is reduced by the improved sealing of moving engine components. For this reason, the product is specially suitable for older cars. Reduces noise from hydraulic lifters.