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It's useless to explain but lubricant is more than ZDDP.

Martin, it is not useless to explain. I think we all get it.

We have flat tappets and the zinc issue was discovered and solved more than 20 years ago. A higher level of zinc IS required for our engines, higher than a modern motor oil designed for a car with a catalytic converter can deliver. This is why most of the oil manufacturers have at least one product in their offerings designed for older engines.

There is no problem in using an oil with a weight of 50. Indeed, all of the major oil manufacturers, and the most respected engine rebuilder for our engines, have specified a 50 weight oil (15W-50 or similar) or have formulated their oils with that weight and the proper amount of lubricant. There was absolutely nothing wrong with using a 40 weight either provided it is designed for an older engine.

This discussion came about because somebody had an engine failure at 2000 km not having anything to do with oil but by using substandard parts, or a bad engine rebuild or something similar not related to oil.

I learned all about this 20 years ago and nothing has changed since that time.
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FORUM
  I’ve purchased 1970 MB 280 SL 4 spd ( off this forum) located in Vermont and need broker and/or transporter recommends from someone who has recently imported a vehicle from USA to Canada ( I think rules may have changed recently??).
  I’ve searched forum for recommends….no history since 2021.   Current experience would be helpful.
  Need to ship Vermont to Invermere BC.  Hoping for closed container shipping?
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It's useless to explain but lubricant is more than ZDDP.
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The owners manual - small booklet that came in the brown vinyl pouch
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I tend to use VR1 20/50 in my classics as it has the right amount of ZDDP.  But don't forget that oil with high zddp  used in any car with a catalectic converter will damage the convertor.
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Announcements / Re: Pagoda World 37
« Last post by JamesL on Today at 10:03:58 »
That's a standout cover photo. Brilliant
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Thanks Lori!!!

What book/document did that come from? I’ve a few, including the ‘big blue book’ but didn’t find anything of help 😔
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Yes, exactly, they just changed it these days for the new parts...
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Hello,
The engine is bored to the maximum bore of 87.5, and the damage from coolant is still visible in the cylinder wall. Nevertheless, I would like to keep this engine block (matching numbers). Does anyone have experience with installing a dry cylinder sleeve in an M130983?
Any information is welcome
Thanks Dries
e mail: dries.demolder@skynet.be
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Wanted To Buy / Re: Fuel cap wanted
« Last post by pathijm on Today at 06:58:47 »
thanks; that very helpful!
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