What to Do When the Highlander Always Shows Insufficient Engine Oil?

[SanBradley]

The Highlander always showing insufficient engine oil can be addressed with the following solutions: 1. Check the oil level sensor wire: Inspect whether the oil level sensor wire under the oil pan is touching anything. 2. In case of blue smoke: During cold weather, brief blue smoke emission is normal due to the vehicle's use of direct injection technology, where the injector is angled into the cylinder. Excess fuel mixes with oil at low temperatures, causing blue smoke during combustion. 3. Check oil consumption: Monitor the oil consumption rate. If it's normal, no action may be needed. 4. Check oil pressure: Inspect the oil pressure as the oil filter screen might be clogged. 5. Visit a repair shop promptly: Have the oil pressure checked at a repair shop. If adequate, the oil pressure sensor may need replacement.