Our Customer use REXOIL 0W-30 API SN for his Jaguar XE 2019
Engine : 380-hp, supercharged 3.0-liter gas V-6
REXOIL Diamond Full Synthetic 0W-30 can be use where a 5W-30 or 10W-30 is recommended. Switching to REXOIL Diamond Full Synthetic 0W-30 can help to increase the engine efficiency and improve fuel economy compare with higher viscosity oils.
What do the numbers in 0W-30 mean?
Engine oils with the designation 0W-30 belong to a certain SAE class according to which the oil was specified. The SAE class describes the viscosity of an oil. Engine oil with class 0W-30 is a multigrade oil. This means that it has good flow properties at both cold and hot operating temperatures. This is necessary in order to optimally lubricate the engine at all necessary points in summer and winter. "0W" stands for flowability at cold temperatures (W=winter). At 0W30 oil the borderline pumping temperature is -40 °C. In this extreme cold, the oil is still liquid enough to disperse in the engine. The second part "30" describes the fluidity of the oil at an operating temperature of 100 °C (operating temperature of most engines). The viscosity of a 0W30 oil at 100 °C is in the range of 9.3 - 12.4 mm²/s. Pay attention to the manufacturer's specifications of your car and only fill 0W30 oil into your car if it has been approved for it.
The scale below show the viscosity of multigrade oils over temperature ranges. For example the SAE 0W-30 oil is still pourable below minus 35 degrees celsius, whereas SAE 10W-30 is not.