Re: Motor Oil Question ??

Posted by Shovelman on December 31, 2006 at 07:53:12 from (68.191.57.27):

In Reply to: Re: Motor Oil Question ?? posted by B-maniac on December 29, 2006 at 21:28:42:

maniac,

Where did it read that zinc was cheaper and they plan to remove it altogether someday? She stated that Rotella "will continue to have higher levels than passenger car/gasoline engine oils". She also stated that Rotella "does have a higher anti-wear level to protect the heavy duty diesels and should give you good performance in this regard".

If there is no problem with the lowering of ZDDP levels in the newer Energy Conserving oils, why are cam manufacturers such as Crane & Comp now recommending an oil additive as well as assembly lube? Why are regrinders such as Delta Camhaft recommending the use of diesel engine oils with higher levels of ZDDP?

We appreciate your lesson on cam run-in, since I only have about 35 years experience machining and rebuilding gas and diesel engines and I sometimes forget which end of a screwdriver I am supposed to hold.

Like it or not, lube oils are changing and we should stay informed regarding the changes.

Here's an interesting link:

• Oil discussion

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