Oil consumption is determined by engine power output and fuel consumption. This means that your engine will consume more oil when you are driving a sportier car or faster or with a trailer to transport horses or boats. Whenever you notice that your vehicle is consuming more oil than before under the same conditions of use, you need to find out why this is happening. High oil consumption can create air pollution and can affect after-treatment devices such as particulate filters and catalysts. Below, some reasons for higher oil consumption:
- Abnormal piston ring and cylinder wear.
- Defective crankcase ventilation.
- Worn valve seals.
- Abnormal turbocharger wear.
This listing is not exhaustive. There are plenty of reasons why your oil consumption may be high. We recommend that you see a qualified mechanic.