ZDDP engine oil discussions for XUD engines

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makemine205
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ZDDP engine oil discussions for XUD engines

Unread post by makemine205 »

Where are the discussions for ZDDP engine oils for the XUD engine discussions and engine rebuilds and new cam break in oils info ?.
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mickthemaverick
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Re: ZDDP engine oil discussions for XUD engines

Unread post by mickthemaverick »

You may find some guidance here: :)
viewtopic.php?p=596442#p596442
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Paul-R
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Re: ZDDP engine oil discussions for XUD engines

Unread post by Paul-R »

What's ZDDP?
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Inside every old person is a young person wondering what the hell happened.

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myglaren
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Re: ZDDP engine oil discussions for XUD engines

Unread post by myglaren »

Zero Dirty Diesel Pollution
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mickthemaverick
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Re: ZDDP engine oil discussions for XUD engines

Unread post by mickthemaverick »

Have a look at this Paul:

"ZDDP’s primary role as a sacrificial anti-wear agent is to prevent wear throughout the engine in areas such as bearings, tappets, cams, piston rings and valve stems."

I found it here:

https://www.duckhams-oils.com/zddp-what ... -all-mean/
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Paul-R
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Re: ZDDP engine oil discussions for XUD engines

Unread post by Paul-R »

myglaren wrote: 06 Dec 2022, 13:43 Zero Dirty Diesel Pollution
Looks to me to be a petrol engine issue. Not many diesel engines use leaded (or unleaded!) petrol.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.

Inside every old person is a young person wondering what the hell happened.

"Trying is the first step towards failure" ~ Homer J Simpson
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CitroJim
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Re: ZDDP engine oil discussions for XUD engines

Unread post by CitroJim »

Paul-R wrote: 06 Dec 2022, 13:54
myglaren wrote: 06 Dec 2022, 13:43 Zero Dirty Diesel Pollution
Looks to me to be a petrol engine issue. Not many diesel engines use leaded (or unleaded!) petrol.
I've been known to use petrol to clean particularly dirty diesel engines ;) They nicely ended up ZDDP with all the P going in the bin in the form of dirty, oily rags...
Jim

A bit of a Citroen AX fan...
makemine205
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Re: ZDDP engine oil discussions for XUD engines

Unread post by makemine205 »

I only found this out the other day so i,m learning about it. Apparently theres been a spate of cam break in failures in the US by engine builders over the years its also been mentioned in piston aero engines .
Some people think its crappy cam and lifter engineering ie chinesium , off shore farmed out products others think its the Zinc that has been reduced in engine oils over the years as it was destroying the cat convertors ?. I,m just wondering if anything like this has occurred in the french car engine rebuilds / collectors cars older engine technology with failed cam break ins ie a wiped out new cam and lifters / tappets ?.