Posted on 7/25/2025
It can be puzzling and frustrating to find that your engine oil level is dropping, even though you don’t see any obvious leaks under your vehicle. You might check your driveway or garage floor expecting to find a puddle, only to discover it’s clean and dry. So, where is the oil going? Understanding why your car loses oil without a visible leak is crucial for protecting your engine and avoiding expensive repairs. Burning Oil Internally One of the most common reasons for oil loss without a visible leak is internal oil consumption. This happens when oil slips past worn or damaged piston rings or valve seals and enters the combustion chamber. Once there, it burns along with the fuel-air mixture. When this occurs, you might notice blue-tinted exhaust smoke, especially during startup or acceleration. However, in smaller amounts, this smoke might not be obvious, making it easy to overlook the problem until oil levels become critically low. PCV System M ... read more