1. What types of truck engines do Cummins, CAT, Navistar, and Detroit offer?
Each brand offers a variety of diesel engines for heavy-duty, medium-duty, and vocational trucks, designed for performance, durability, and fuel efficiency.

2. Which engine is best for long-haul trucking?
Cummins and Detroit are popular choices for long-haul applications due to their fuel efficiency and advanced powertrain technologies.

3. Are parts easily available for these engines?
Yes, all four brands have extensive service networks and readily available parts globally.

4. What is the average lifespan of these truck engines?
With proper maintenance, these engines can last anywhere from 500,000 to over 1,000,000 miles.

5. Do these engines meet current emission standards?
Yes, all engines from Cummins, CAT, Navistar, and Detroit comply with modern EPA emissions regulations.

6. Are these engines compatible with alternative fuels?
Some models, especially from Cummins, offer compatibility with natural gas or biodiesel blends.