Check the oil for contamination, water, discoloration and thinning. If the quality of the oil is not satisfactory, change the oil. Use oils (according to API classification) class CD or higher with a viscosity appropriate to the operating conditions.
Temperature range expected before next oil change in turbocharged engines
2. Checking the oil level in the engine. The oil level must be between the marks "L" And "F" on the probe. If the level is below the lower limit, then check for leaks and add oil to the mark "F".
3. Remove the oil pressure sensor.
4. Install a pressure gauge.
5. Warm up the engine. Wait until the engine reaches operating temperature.
6. Check oil pressure.
Oil pressure:
At idling at least 0.3 bar At 3000 rpm 3.0 - 5.5 bar
7. Install the oil pressure switch by applying grease to two or three threads.
8. Start the engine and check for leaks.