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To use or not to use That is the question

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To use or not to use That is the question

Posted by terence_terrell at August 31. 2017

Some products extol the virtues of containing PTFE whilst others emphasize the exclusion of it.  What's the thinking behind this?

Terence

Re: To use or not to use That is the question

Posted by michael_sullivan at August 31. 2017

Huh?

What type of products are you asking about?

Engine oil?

Grease?

Gaskets?

other?

 

Mike

Re: To use or not to use That is the question

Posted by john_evans1 at August 31. 2017

In the case of oil additives the research suggests that unused particles which fail to attach to the relevent internal surfaces can fall to the oil pump and cause clogging.

 

I must admit to having used slik 50 with success but never had to split the subaru and citroen engines it went into. Both  started easier and were quieter.

 

In grease I see no real issues but have nit used ptfe grease myself as I have no needto do so.

Re: To use or not to use That is the question

Posted by Charles Bovington at September 02. 2017

In the 1990's I was asked to look at the possibility of incorporating these additives into the lubricant packages which we supplied to about 30+ % of the worlds lubricant marketers. I was unable to find any advantage in friction and wear studies conducted under a range of test conditions.

There are/ were a number of FTC judgments condemning the claims made by the various aftermarket additive suppliers including Slick 50.

And for those in our club who believe in conspiracy theories, this was not because BIG OIL pulled strings.

Re: To use or not to use That is the question

Posted by David Cooper at September 04. 2017

That's interesting Charles. PTFE doesn't make intuitive sense as as additive to liquids since its low friction is due to its very smooth molecules when solid. Old fashioned graphite slips on planes between layers on an atomic scale but solid PTFE is quite strong stuff.

(PS sorry text size changes... Why is that?) Pps only goes wrong in text editor...

Re: To use or not to use That is the question

Posted by john_hall1 at September 08. 2017

Previously Charles Bovington wrote:

In the 1990's I was asked to look at the possibility of incorporating these additives into the lubricant packages which we supplied to about 30+ % of the worlds lubricant marketers. I was unable to find any advantage in friction and wear studies conducted under a range of test conditions.

There are/ were a number of FTC judgments condemning the claims made by the various aftermarket additive suppliers including Slick 50.

And for those in our club who believe in conspiracy theories, this was not because BIG OIL pulled strings.

The additive that was added, gave off a volatile odour, which once detected by the Hypothalamus in the brain, convinced the owner of the said machine that at it's max speed it was travelling was 15mph faster than it's real speed @ 1,000 rpm less, that there was no vibration and it was the best motorcycle in the World!  Many  owners, succumbed to this cunning mysterious effect!

 

Cheers

 

John H

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