Read more: 15 Popular Oil Filter Brands, Ranked Having a failed CP4 pump on your diesel engine would be bad enough. To begin with, new or remanufactured CP4 pumps can cost between several hundred ...

As with gasoline engines, diesel injection pumps are controlled by the engine control module in order to deliver the correct amount of fuel at the right time for each cylinder. With diesel engines ...

Diesel engine oil typically possesses a higher level of viscosity, which means it pumps at a much lower temperature and takes more heat to start flowing cleanly.