In freezing temperatures, conventional oils can become thick and sluggish, delaying lubrication to vital engine parts. This specific grade combines a zero viscosity index at low temperatures with a high viscosity rating of 40 at operating temperature, providing exceptional protection across a wide temperature range.
0w 40 Synthetic Oil Cold Weather Fluids: Superior Flow and Protection
High-Temperature Stability and Protection Under the heat and pressure of combustion, engine oil faces the constant threat of thinning and shearing. This specific balance ensures the oil flows freely in freezing conditions to protect critical components immediately, while maintaining a stable, protective film thickness when the engine reaches its normal running temperature.
0w 40 synthetic oil , however, remains fluid, allowing for near-instant circulation through the engine block. The number following the 'w' denotes the viscosity at the engine's normal operating temperature, which in this case is 40.
0w 40 Synthetic Oil Cold Weather Fluids: Superior Flow and Protection
The high viscosity index of the "40" rating ensures that 0w 40 synthetic oil maintains a robust oil film even at elevated temperatures. The extended drain intervals reduce the frequency of oil changes, saving money on both oil and labor.
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