Asking for a friend. He's been having gunky oil for some time now in his 1990 16v. I replaced the oil cooler a few weeks ago, done a compression test and all was good. Thing is, he's getting a small amount of mayo on his dipstick! (oooer!). I told him to blow out the breather pipe that goes from the front of the block, to the airbox. He said, after discovering a lump in it, he managed to squeeze out what looked like a 'ball of mesh'. Is this standard or is this why he was getting the problem? It seems to have sorted it. Has anyone else had this or know what it could have been?
