Blacker than black oil

[jorden486]

Definitely don't start doing extended oil changes. My dealer parts rep came by last week and was telling us about a local company that just got bought out by a corporate bigger company and that they had started switching to bypass filters and extending oil changes. Our first question was 'how many cams have you brought them?' He said you know come to think of it they have been buying quite a few cams the last few months.

Don't drink the koolaid. By pass filters are great- any time you can keep cleaner oil in the engine the better, but that oil is still on'y good for so long.