[GreenKeys] [External] Re: WD-40

Mon Sep 7 19:55:12 EDT 2020

This has been a very interesting thread, including the first good practical explanation of the difference between  "regular" oil and synthetic oil I've heard.

This leads me to two question.

How much better are some of the other oils mentioned than 10W synthetic which I can get from a store only 5 blocks away.

What happens when the two  ( synthetic and non-synthetic) are mixed together for example in that oil reservoir on the selector?

John, W9DDD

> On Sep 7, 2020, at 9:42 AM, Curt Nixon <radio.ku8l at gmail.com> wrote:
> 
> Air tool oil is very similar.   Usually clear and good to 30-40,000 RPM.   Get it in small queeze bottle anywhere they sell air tools.
> 
> KU8L
> 
> 
>> On 9/6/2020 5:45 PM, Bruce Gentry via GreenKeys wrote:
>> 10W turbine oil is used in hydraulic elevators and can be had in five gallon pails from oil suppiers. You can also try to find and befriend an elevator technician, buying them coffee and a snack should get you a gallon or two.ï¿½ NEVER go to the office of an elevator company, or a supervisor!ï¿½ï¿½ 
>> 
>> ï¿½ï¿½ï¿½ï¿½ï¿½ Bruce Gentry, KA2IVYï¿½ï¿½ï¿½ Local 62 International Union of Elevator Constructors, Retired. 
>> 
>>> On 9/6/20 4:46 PM, 1oldlens1 wrote:
>>> There is something called turbine oil made for high speed machinery.ï¿½ I suspect a lot of fine machinery pil is repackaged turbine oil.
>>> 
>>> 
>>> 
>>> Sent from my Samsung Galaxy smartphone.
>>> 
>>> 
>>> -------- Original message --------
>>> From: "Jones, Douglas W" <douglas-w-jones at uiowa.edu>
>>> Date: 9/6/20 12:59 PM (GMT-08:00)
>>> To: Jeffrey Angus <jdangus at att.net>, greenkeys <greenkeys at mailman.qth.net>
>>> Subject: Re: [GreenKeys] [External] Re:ï¿½ WD-40
>>> 
>>> From: Jeffrey Angus [jdangus at att.net] -- Sunday, September 6, 2020 2:12 PM
>>> 
>>> > A specific oil?
>>> 
>>> When Teletype Corporation was a branch of the Bell System, they recommended KS7470 oil.ï¿½ That is no-longer available, but I did some research.ï¿½ See:
>>> -- https://www.cs.uiowa.edu/~jones/pdp8/UI-8/ks7470oil.shtml
>>> 
>>> I've been using Starrett 1620 Tool and Instrument Oil, because it comes in convenient sized small bottles.
>>> 
>>> One datasheet I found said this is really Nye Delicate Machinery Oil 113, which you can easily buy by the gallon or drum.
>>> 
>>> But, on my small instrument-makers lathe, I use sewing machine oil.ï¿½ It's clear instead of yellowish, but seems very similar in general characteristics.ï¿½ You can get it at just about any fabric store.ï¿½ I learned about this when I encountered a secretary at work deep in discussion with a coworker who restores full-sized steam locomotives for a hobby.ï¿½ Her hobby was restoring sewing machines, and they were deep in a discussion of freeing old rusted mechanisms, cleaning bearings, degunking and lubrication.ï¿½ It turns out that an old sewing machine that's been rusting in a barn for 50 years is no more or less a problem than an old locomotive that's been rusting in a city park for 50 years.ï¿½ Aside, that is, from the matter of size.
>>> 
>>> ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ Doug Jones
>>> ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ jones at cs.uiowa.edu
>>> 
>>> 
>>> 
>>> --
>>> "I am a river to my people."
>>> Jeff-1.0
>>> WA6FWI
>>> www.foxsmercantile.com
>>> 
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