Reply to "Camshaft failure"

5754If you're not kickin' up dust, you're collectin' it!

quote:
Why did you not like the detergents in the Rotella oil ?

The reading I'd done at the time was saying that in gasoline engines the detergents would be busy cleaning the metal on metal surfaces while the ZDDP was trying to coat those surfaces - they argued that it isn't as much of an issue in big slow diesel engines as it is in high revving gasoline engines. Rotella is supposed to have lower detergent levels than other diesel oils though, so that may be why it's been a good choice for some builders.

Here's a fairly recent article that sums up a lot of what I'd been reading some years ago on ZDDP, detergents and the progress of oils over the years ...

http://www.enginebuildermag.co...re_what_why_how.aspx

It's a bit long, but a good read - granted, if you search around a bit, you're sure to find articles that claim the opposite and say that modern oils are fine and ZDDP isn't needed; as for me, I'm not going to take that chance.

10/7/1310:00 PM

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