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. So you take the cap off. The car might go some miles without any problem but the damages might cost you to fortune later. Very few cars if any will throw oil out that tube.

My car has an automatic transmission. 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. My car has 95000 miles. You and your friends cars have a lot of life left in them most likely.

An engine oil cap keeps things safe and reduces the chances of loss. If you leave i. But you will get some condensation of oil on hot parts around it and a mess. If you have a regular car with the oil cap on top of the valve cover and you open it at idle all that happens is you get to watch the cam or rockers activate the valves.

Contrary to some o. It very much depends on the engine and where the oil cap is. 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. The danger is the dust that gets in.