Re: Motor Oil Question ??

Posted by B-maniac on December 29, 2006 at 21:28:42 from (207.241.134.55):

In Reply to: Re: Motor Oil Question ?? posted by Stumpalump on December 29, 2006 at 15:08:48:

What I read in this is that zinc is probably lower cost and as such they will continue to use it in oil NOT reccomended for vehicles with cat converters or o-2 sensors. She says the non-zinc additives for anti-wear are just different chemistry to do the same thing. I didn't hear the word "inferior" and I didn't hear her say "yes,use Rotella with zinc in older gas engines for wear". I'm sure it also has something to do with the shear amount of oil that trucking fleets go through that they know a high priced synthetic just wouldn't cut it especially since they can use the lower priced oil with zinc. Eventually zinc will be taken out just like lead was. Does that mean everything out there with non-roller lifters will be junk in 50,000 miles? I doubt it. They don't design engines around what oil is doing. They design oil around what ALL engines need , not just new ones. Most cam and lifter failures are caused by improper break-in , improper assy. , mis-matched parts and in a lot of cases the idiot behind the wheel. We will just blame the oil though , not the guy who IDLES his '60,s muscle car through a 2 hr. parade on a 95 degree day. Hope you all know it is only splash lubrication on a flat tappet cam lobe. It needs some rpm once in a while for that to happen. That's why break in should be 2000 rpm at least. OIL??

Replies:

• Re: Motor Oil Question ?? Shovelman 07:53:12 12/31/06 (0)

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