Good Year All Turbo Power Plus Semi Synthetic Engine Oil

Good Year 15w40 CI4 Plus Engine Oil is an extremely high performance diesel engine oil that provides outstanding lubrication for today's diesel engines, extending engine life. This superior performance has been demonstrated in the field across a wide range of industries, applications, and mixed fleets. Oils with the "CI-4 PLUS" classification are designed to guard against soot-related viscosity rise and viscosity loss due to shear in diesel engines. When it was first released, CI-4 Plus discovered CI-4 oils that performed at a higher level. The flowability of "15W" refers to the flowability of the material in cold temperatures (W=winter). It's still pumpable at -25 degrees Celsius, which means it's liquid enough to spread in the engine. The number "40" denotes the engine oil's flowability at a certain temperature.