Hey All --
I successfully changed my valve cover gasket @ 138k miles. I had a little bit of oil in the front part of the engine. I found that the gasket was really brittle. I had used Mobil 1 EP mostly, with the last few changes being Pennzoil Platinum and some Quaker State Ultimate Durability. Take a look at the overhead cams. I noticed that there appears to be almost zero tarnish on 3 and the 4th seems to have tarnish on it.
For all you experienced folks, what do you think when you see it (highlighted red box).
and here's the other half
I successfully changed my valve cover gasket @ 138k miles. I had a little bit of oil in the front part of the engine. I found that the gasket was really brittle. I had used Mobil 1 EP mostly, with the last few changes being Pennzoil Platinum and some Quaker State Ultimate Durability. Take a look at the overhead cams. I noticed that there appears to be almost zero tarnish on 3 and the 4th seems to have tarnish on it.
For all you experienced folks, what do you think when you see it (highlighted red box).
and here's the other half