Title: Check the engine oil level and condition.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Engine

Checking should include

- parking the vehicle on level ground
- checking the oil before starting; level should be between add and full marks on the dipstick
- inspecting the oil condition (e.g., gritty, burnt smell, discolored, milky)
- taking an oil sample, if scheduled
- inspecting the seal or O-ring at the top of the dipstick.

Process/Skill Questions:

- What problems would over-filling a crankcase with oil cause?
- What is the notable sign of a worn or missing dipstick seal?