MTU 12 V 4000 M23F Operating Instructions Manual page 222

Engine oil – Sample extraction
and analysis (engines with
switchable oil filter)
1. With the engine running at operating tem-
perature, open screw on flange of centrifu-
gal oil filter by 1 to 2 rotations.
2. Drain approx. 2 liters engine oil to flush out
the oil sludge.
3. Drain approx. 1 liter engine oil into a clean
container.
4. Close screw.
5. Using the equipment and chemicals in the
MTU test kit, analyze the engine oil for:
• Dispersion capability (spot test);
• Water content;
• Dilution by fuel.
222 | Task Description | MS150068/01E 2014-01