Näköjään nokan valmistajatkin joutuvat jo antamaan suosituksia
http://www.schneidercams.com/Warranty.htm
http://www.schneidercams.com/cams/113.htm
As many of you already know, there have been dramatic increases in flat tappet camshaft failures over the past few years. According to our research, this is due mostly to recent changes in motor oil formulas. Current strict emissions standards have pushed the oil companies to pull zinc, phosphorus, and other high pressure lubricants out of the oils. The fact that most, if not all, late model motors are factory-equipped with roller tappet cams allowed the change. This has become so problematic for the flat-tappet world that Hotrod Magazine published an article on the subject [When Good Cams Go Bad, June 2006]. The life of a flat tappet camshaft depends on proper lubrication. Inferior oil formulas put your camshaft and motor at risk!