Oil Supply/Oil Level Measurement

Oil Supply/Oil Level Measurement

The oil supply system as a whole has been adopted from the previous model. A change applies in the area of oil level measurement. Continuing with the positive experiences with electrical oil level measurement and a changeover in measuring habits away from manual measurement via the oil dipstick to electrical oil level measurement, the new Boxster (987) and Boxster S (987) engines do not have an oil dipstick.

NOTE: The hole on the crankcase for the oil dipstick is closed with a plug.

In order to speed up the process of measuring the oil level in certain operating states and in the interests of measuring convenience, map compensation has been introduced. Previously, all of the engine oil had to return to the oil pan after the engine was shut off before the oil level could be measured. To enable accurate measurement of the oil level, the necessary time required to achieve this state was ensured by means of a waiting time for oil level measurement, determined according to the oil temperature and the length of time the engine has been off.







With map compensation, the actual measured oil level in the oil pan is compensated to take in account the oil temperature and the length of time the engine has been off. The oil that has not yet returned to the oil pan is electronically calculated and theoretically added, and the calculated oil level is displayed in the instrument cluster as quickly as possible. This results in a substantial reduction in measuring times compared with the previous system.