Hamburg - Checking the oil level in a car often ends in frustration in a bid to find the oil stick and getting your hands all dirty.

Instead, why not just press a button in the car with a display indicating the exact oil level?

Several new cars already have such a comfortable feature which car parts supplier Hella has made available to several manufacturers over the past two years.

Now engineers at Hella have developed a more advanced Ultrasonic Level Sensor (Puls) that not only puts an end to all the hassle of opening the bonnet for the regular oil check but monitors the quality of the oil, telling the driver exactly when he should go for an oil change.

The oil change intervals are adjusted to the respective engine and driving habits, improves engine management, lowers fuel consumption and extends the life of the engine, according to Hella. (dpa)