Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


types of oil Cox_ba12




types of oil Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (November 2024)
by Admin Today at 1:27 am

» *Cox Engine of The Month* Submit your pictures! -November 2024-
by Admin Today at 12:52 am

» My N-1R build log
by roddie Yesterday at 10:22 pm

» K&B Sea Fury outboard engine, casting and box repair
by ffkiwi Yesterday at 7:45 pm

» Cox 020 PeeWee rebuild questions
by Ken Cook Yesterday at 7:09 pm

» Cox NaBOO - Just in time for Halloween
by rsv1cox Yesterday at 6:38 pm

» Took an engine out last week
by GallopingGhostler Yesterday at 5:26 pm

» Drones, pretty nifty...........
by rdw777 Yesterday at 4:00 pm

» TEE DEE Having issues
by davidll1984 Yesterday at 7:01 am

» Throttle control for Cox .010 "Viking" engine.
by davidll1984 Yesterday at 6:18 am

» COX .020 POWERED SPEEDSTER
by getback Yesterday at 6:12 am

» Cox extra 300s
by Coxfledgling Yesterday at 4:25 am

Cox Engine of The Month
October-2024
MauricioB's

"Cox .049 Circa 1975, custom."



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


types of oil Empty
Live on Patrol


types of oil

Go down

types of oil Empty types of oil

Post  robot797 Wed Sep 28, 2016 11:30 am

hi
after a recent topic that was about the mk17
i wanted to start a topic with a few questions about the oil we use

i have used castor oil and extra virgin olive oil
as far as my research has shown they are both the same

but (there is always a but)
there is one problem with olive oil
that everybody talks about
if you get normal olive oil it damages the engine becaus it burns

i have run my mk17 on a fuel that has olive oil
and i have not seen any signs of wear or damage

the oil out of the engine still has the color of the extra virgin olive oil
but it does not smell like it anymore

my generator also runs it and that one runs a lot hotter
and the oil does the same in that engine

are there people here that have tried
extra virgin olive oil
or is it just me and a couple other guys on the other forums

robot797
robot797
Platinum Member
Platinum Member

Posts : 787
Join date : 2013-07-28
Age : 34

Back to top Go down

types of oil Empty Re: types of oil

Post  Cribbs74 Wed Sep 28, 2016 2:47 pm

Well I learned two things today, why we use castor in model engines and never type "Olive oil as a lubricant" in the search engine.

Long story short, while Olive oil has similar properties and in some cases a higher smoking point such as (extra virgin) it does not polymerise and create varnish when overheated like Castor oil does. Basically it won't protect your engine when it goes too lean. I think the success people have had is because they are operating the engine in a safe temp zone. If something goes wrong it wil melt an engine in short order.

It would be safer in RC as you can kill the engine in flight. In Control Line if it goes lean you have to ride it out.

I personally wouldn't bother with it. It is good on Salad and Bread though!


Last edited by Cribbs74 on Wed Sep 28, 2016 2:50 pm; edited 1 time in total
Cribbs74
Cribbs74
Moderator

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11907
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK

Back to top Go down

types of oil Empty Re: types of oil

Post  robot797 Wed Sep 28, 2016 2:49 pm

the reason why i tested it as a castor replacement
becaus cator is rediculus expencive here
robot797
robot797
Platinum Member
Platinum Member

Posts : 787
Join date : 2013-07-28
Age : 34

Back to top Go down

types of oil Empty Re: types of oil

Post  Cribbs74 Wed Sep 28, 2016 2:53 pm

Yeah I get that, what I was saying is it's only safe when everything is perfect. Do you have no way of obtaining properly mixed fuel?
Cribbs74
Cribbs74
Moderator

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11907
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK

Back to top Go down

types of oil Empty Re: types of oil

Post  RknRusty Wed Sep 28, 2016 2:55 pm

Ahh, shoot, I took too long to send.
Since I don't know all that much about oils, a complex subject no matter what the organic or synthetic origin, I'll post a link to a list of vegetable oil smoke points. I fried flounder for supper last night in canola oil(400F), a.k.a. Canada oil, or GMO'd rapeseed. It does not address viscosity, film strength, varnish, or any mechanical properties or values, just cooking implications.

https://jonbarron.org/diet-and-nutrition/healthiest-cooking-oil-chart-smoke-points

Let the discussion begin.
Rusty

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist
RknRusty
RknRusty
Rest In Peace
Rest In Peace

Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA

Back to top Go down

types of oil Empty Re: types of oil

Post  robot797 Wed Sep 28, 2016 3:01 pm

Cribbs74 wrote:Yeah I get that, what I was saying is it's only safe when everything is perfect. Do you have no way of obtaining properly mixed fuel?

no here in holland we never realy used diesels
so i have to mix my own
the funny thing
parafin/kerosine dirt cheap
ether kind of okey (just found a store that sells it in 5 liter jugs)
castor oil 120 ml 3 euro expencive stuff
robot797
robot797
Platinum Member
Platinum Member

Posts : 787
Join date : 2013-07-28
Age : 34

Back to top Go down

types of oil Empty Re: types of oil

Post  ian1954 Wed Sep 28, 2016 3:13 pm

Try doing a search for "Racing Castor Oil"

e,g,

https://www.bloodsweatgears.com/product/maxima-castor-927-2-stroke-premix-racing-oil-1ltr/?gclid=Cj0KEQjw1K2_BRC0s6jtgJzB-aMBEiQA-WzDMS9WhdUwPD_zrttJ5ulMoFSOEqkZ77eIyjO0LBtz1rEaAupB8P8HAQ

or "Pure refined castor oil"

Preferably first pressing.


Do not use medicinal castor oil!
ian1954
ian1954
Diamond Member
Diamond Member

Posts : 2688
Join date : 2011-11-16
Age : 70
Location : England

Back to top Go down

types of oil Empty Re: types of oil

Post  robot797 Wed Sep 28, 2016 3:19 pm

pure refind costs 13 euro per 300 ml
racing oil is only sold by one company and it is around 10 euro and 10 euro shipping
robot797
robot797
Platinum Member
Platinum Member

Posts : 787
Join date : 2013-07-28
Age : 34

Back to top Go down

types of oil Empty Re: types of oil

Post  gcb Wed Sep 28, 2016 11:15 pm

robot797 wrote:pure refind costs 13 euro per 300 ml
racing oil is only sold by one company and it is around 10 euro and 10 euro shipping


How much do your engines cost?

Experienced people here are suggesting castor oil.

AFAIK ALL diesel engine manufacturers recommend castor oil.

If you intend to run the olive oil, keep your compression settings on the low end...that is, when you peak it out there is a flat spot where increasing compression does not increase RPM. Exceeding that compression causes RPM to drop off. At that point lower compression until it starts to lose RPM. Raise compression just a bit to peak.

Good luck either way but I would suggest you find a source of commercial blend that uses castor.

As someone mentioned, olive oil is good for salads and bread. If it were good for engines, more people would use it...including me.

George
gcb
gcb
Platinum Member
Platinum Member

Posts : 908
Join date : 2011-08-11
Location : Port Ewen, NY

Back to top Go down

types of oil Empty Re: types of oil

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum