[GreenKeys] Lubrication question.

[Scott Johnson]

I have always assumed that Castrol (brand) was a contraction of castor oil,
which of course would make it vegetable oil, from the castor bean. I doubt
if they still make any castor oil based product, most two stroke oils are
now synthetic. Castor oil was (is) used in two stroke engines for total loss
lubrication, i.e. it is injected into the crankcase where it is eventually
burn in combustion, or it is premixed with the fuel.  The smell is
distinctive, as anyone who moto-crossed in the sixties and seventies or flew
model aircraft know.  It also caused nausea and diarrhea for the WWI pilots
that got a face full of it from the rotary engines in front of them.
If I remember from childhood experience, it is indeed not miscible with
hydrocarbon oils.  It also gets very sticky, as those of us that collect old
model engines know.

Scott V. Johnson W7SVJ
5111 E. Sharon Dr.
Scottsdale, AZ 85254-3636
H (602) 953-5779
C (480) 550-2358
scottjohnson1 at cox.net
scott.johnson at ieee.org

-----Original Message-----
From: dave.g4ugm at gmail.com <dave.g4ugm at gmail.com> 
Sent: Sunday, September 13, 2020 12:36 AM
To: 'Scott Johnson' <scottjohnson1 at cox.net>; 'Jeffrey Angus'
<jdangus at att.net>; greenkeys at mailman.qth.net; GreenKeys at mailman.qth.net
Subject: RE: [GreenKeys] Lubrication question.

Scott,
When I used to pick people up who fell off their Motorcycles whilst racing
them, I learnt that in the UK many were lubricated by a non-mineral oil,
namely "Castrol R"..

https://www.opieoils.co.uk/p-77371-castrol-power1-r-40-sae-40-castor-based-r
acing-motorcycle-engine-oil.aspx

it has a distinctive smell, and does not mix with mineral oils, so for me
the term "mineral oil" is significant and meaningful and tells me to keep it
way from any bike containing "R"

Dave
G4UGM

> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net <greenkeys- 
> bounces at mailman.qth.net> On Behalf Of Scott Johnson
> Sent: 13 September 2020 00:51
> To: 'Jeffrey Angus' <jdangus at att.net>; greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] Lubrication question.
> 
> 
> There is really no significance to the term "mineral oil", One might 
> as
well say
> "hydrocarbon oil".  It come from the black stuff in the ground, it is 
> traditionally a straight alkane (non-branched) hydrocarbon fraction.
> Yes, you slather junior with the leftovers from gasoline production.
> I guess it does distinguish it from vegetable and animal derived oils.
> 
> Scott V. Johnson W7SVJ
> 5111 E. Sharon Dr.
> Scottsdale, AZ 85254-3636
> H (602) 953-5779
> C (480) 550-2358
> scottjohnson1 at cox.net
> scott.johnson at ieee.org
> 
> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net <greenkeys- 
> bounces at mailman.qth.net> On Behalf Of Jeffrey Angus
> Sent: Saturday, September 12, 2020 4:21 PM
> To: greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] Lubrication question.
> 
> On 9/12/20 5:39 PM, Jeffrey Angus wrote:
> > After I get all the gunk off of my Lorenz Lo-15c, any thoughts on 
> > using this for lubrication?
> > <https://www.crcindustries.com/products/food-grade-machine-oil-11-wt
> > -
> o
> > z-03081.html>
> >
> >
> > It appears to be mineral oil based.
> >
> Also, I do use this stuff on the gears, Red and tacky #2 grease.
> <https://shop.advanceautoparts.com/wcsstore/CVWEB/staticproductimage
> //N3249/
> large/10584101_lco_10574_pri_larg.jpg>
> 
> 
> --
> "I am a river to my people."
> Jeff-1.0
> WA6FWI
> www.foxsmercantile.com
> 
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