Oil Cap Off Engine Running

Those that do probably have a lot of blow by from bad rings.

Oil cap off engine running.

If your really concerned you can have a competent mechanic run a compression test. If you leave i. But you will get some condensation of oil on hot parts around it and a mess. My car has an automatic transmission.

You and your friends cars have a lot of life left in them most likely. It very much depends on the engine and where the oil cap is. Placing your hand over the oil fill cap is not a great way to measure blow by and determine an engine s condition. Now let us know the possible damages of driving with oil cap off.

My car has 95000 miles. Looking to buy a used car i was told that if air is blowing out of the oil fill cap when open while the engine is running it s a bad sign but i m wondering if this could be just how this model works. Contrary to some o. So you take the cap off.

An engine oil cap keeps things safe and reduces the chances of loss. The danger is the dust that gets in. On the nissan sr20 engine a common fault is that the cam spray bars clog up which means the cams are starved of oil and it eventually causes an expensive failure when the swarf from the knackered cam shafts travels into the rest of the engine. Very few cars if any will throw oil out that tube.