What Vehicles Are Suitable for 15W-40 Engine Oil?

[LeAnastasia]

15W-40 engine oil with a viscosity of 40 is more suitable for European and German cars, but only if the ambient temperature is not too low. Below is more information about 15W-40 engine oil: 1. For 15W-40 engine oil, the number before the W represents the oil's fluidity. The smaller the number, the better the fluidity, and it also indicates the lowest temperature at which the oil can be used. For example, 15W means the oil can be used at temperatures above -20°C; W stands for Winter. 2. The number after the W represents the oil's viscosity. The larger the number, the higher the viscosity, the better the high-temperature protection performance, and the greater the resistance. Therefore, higher viscosity does not always mean better. Below is more information about engine oil viscosity: 1. Higher viscosity oil provides better sealing but consumes more fuel. 2. At idle, higher viscosity oil results in lower noise. 3. While driving, higher viscosity oil produces higher noise. 4. Lower viscosity oil saves fuel.