RUBIA WORKS 4000 10W-40 is especially suitable for engines used in Off-Road activities (quarries, construction, mining, railroads…) requesting API CK-4 or CJ-4 level. Thanks to its numerous approvals, it can be used also in "On-road" truck engines.
This lubricant withstands very long working periods under severe conditions and high load, with dust and heat
Product description:
RUBIA WORKS 4000 10W-40 has been especially reinforced in viscosity stability under shearing and oxidation resistance (much higher than simple API CK-4), providing the possibility for the end user to reach or to exceed the maximum manufacturer’s drain interval recommendation, even under severe working conditions with bad Fuel quality or with Bio-Diesel fuel.
Furthermore, it’s 10W-40 viscosity grade allows the end user to start the engine at very low temperature
