Which technician claims that diesel engine oil operates at higher temperatures?

Technician A is correct in claiming that diesel engine oil operates at higher temperatures. This is primarily because diesel engines are typically designed to generate more power and torque compared to gasoline engines. As a result, they tend to produce greater amounts of heat during operation. Diesel engines operate under higher compression ratios and more rigorous conditions, leading to elevated oil temperatures.

The oil in diesel engines is formulated specifically to withstand these higher temperatures and to maintain its viscosity, protecting engine components under extreme conditions. This includes ensuring that the oil provides adequate lubrication and cooling even when the engine is operating at high temperatures. Therefore, Technician A’s understanding aligns with the operational characteristics of diesel engines, emphasizing the importance of using appropriate oil that can perform efficiently at these elevated temperatures.