Reasons why Engine May be Low on Oil - Chevrolet Service Information in Salem, OR
Learn why your Chevrolet engine may be low on oil

It's important to keep adequate amounts of oil in your vehicle. Oil lubricates the moving parts in your engine to keep them from grinding together and causing damage. Ideally, the oil will stay in the same closed system it is typically in between oil changes. Sometimes this just doesn't happen, and you might discover your oil levels to be low. To help keep this from happening we highly recommend having your oil levels checked every time you fill up your Chevy at a gas station. Catching low levels early can decrease the risk of damage. To help avoid oil issues, bring your vehicle into an authorized Chevy service center and let one of our technicians change the oil for you routinely. Our technicians stand behind their work, and we strive to keep your vehicle running smooth. Below we've outlined the 5 most probable reasons for low oil levels.

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5. THE OIL PAN IS LEAKING

Whenever your car is turned off, the active oil settles back into the oil pain. When you're out driving, that oil is being pumped through the engine. There's an easy telltale sign to know if your oil pan is leaking: oil drops beneath your car when it is parked. No matter the amount, seeing the evidence of a leak is a bad sign. Thankfully the diagnosis is relatively easy to make.

4. AN ENGINE OIL LEAK SOMEWHERE ELSE

Unfortunately not all leaks are as easily diagnosed as an oil pan leak. There are many places within the engine that a leak could occur since the oil is constantly circulating. While some might leave puddles beneath your car like the oil pan, many others do not due to the oil landing on the engine first and becoming congealed. The best way for a technician to diagnose is to run a dry test since these types of leaks can be difficult to find.

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3. A DAMAGED PCV VALVE

Leaks are not the only sign of low oil. If it is discovered there is no leak, oil is likely being burned inside the engine. Oftentimes a bad Positive Crankcase Ventilation (PCV) valve is the culprit. The PCV valve is supposed to let air escape when the pressure gets too high in the crankcase. But if it has gone bad, the pressure in the system overall increases and will allow oil in the combustion chambers where it gets burned.

2. BAD INTAKE OR EXHAUST VALVES

Another issue could be bad intake or exhaust valves. Intake valves allow fuel and air to combine in the cylinders and be combusted, whereas the exhaust valves let the waste from combustion escape back out the cylinders. Oil could get into the combustion chamber if these parts are worn out, and it will get burned alongside the fuel and air mixture.

1. WORN PISTON RINGS

Oil might find its way into the combustion chamber if the piston rings are worn out. These rings help seal the piston to keep oil out as the pistons travel up and down the cylinder. Wear on the piston-rings can also be a sign that your engine is beginning to wear out as well, as these rings are known to be long-lasting.

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CAPITOL CHEVROLET OF SALEM

2855 Maple Ave Ne
Directions 2855 Maple Ave Ne
Salem, OR 97301

  • Contact: (503) 877-2943