What is normal oil pressure for a 2011 Chevy Silverado?

20 psi at 650-750 rpms is normal.

What causes low oil pressure in a Chevy Silverado?

The number one reason that your Silverado would have low oil pressure would be a lack of oil. The first thing you should do, is check your engine oil level. If the engine oil level appears to be low (or empty), you’ll need to fill it up. Do not drive a vehicle with low engine oil to the store to buy more oil.

Why is my car losing oil pressure?

One of the possible low oil pressure causes is worn-out bearings. If you have driven the car for quite a long time, low oil pressure could occur due to worn out rod bearings and main bearings. The bearings also play an important role to keep up the right pressure of the oil.

Why does oil pressure drop?

Engine oil filters have oil pressure relief valves which will allow engine oil to continue blowing in unique circumstances such as when the oil filter is clogged with aged oil. This can lead to oil pressure dropping as the engine warms up. Other causes of low engine oil pressure are worn-out crankshaft and bearings.