Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Scale Model Gas Engines - Hit & Miss - Throttle Governed - Non-Compression – etc => Topic started by: Jim on September 29, 2020, 09:53:00 pm

Title: Re: Mystery Oil Substitute?
Post by: Jim on October 02, 2020, 03:30:08 am

Thanks Jack.

Title: Re: Mystery Oil Substitute?
Post by: Adirondack Jack on October 02, 2020, 01:43:48 am

I’ve got friends who swear MMO is basically hydraulic fluid. It looks and smells very much like military aircraft hydraulic fluid. Basically anything sold as top cylinder lube or in a pinch, bog  standard hydraulic fluid in a light ratio would do. I’m not a fan of heavier two stroke oils designed for 100 to 1 mix in high performance outboards and such. This is a low compression, low speed engine. It doesn’t take a lot, and the rings are petroleum resistant. If your nix feels just a tiny bit slippery between your fingers, it’ll do.

Title: Re: Mystery Oil Substitute?
Post by: Jim on October 01, 2020, 01:26:42 am

Thanks Dave.

Title: Re: Mystery Oil Substitute?
Post by: Steam Technology on September 30, 2020, 06:07:07 pm

Hey Jim
Just about any fuel additive will be equivalent to MMO
Penrite do one as do Redex nulon, etc.
All available at autopro, autobarn, supercrap etc.
See email.

Title: Re: Mystery Oil Substitute?
Post by: Jim on September 30, 2020, 05:48:37 pm

Thanks Doug & Gil for the replies, appreciated guys.

I've successfully (so far) fought the urge to buy one of the Chinese H&M engines, but feel my resolve weakening and the M92 with governor looks very nice.

For fuel, Zippo lighter fluid is easy to acquire down here but no one I have inquired to knows anything about Marvel Mystery Oil.

How critical is the oil mix for these H&M engines?

Title: Re: Mystery Oil Substitute?
Post by: RedRyder on September 30, 2020, 09:06:35 am

Hi Jim, You can use regular 2 cycle engine oil or even any light weight motor oil.
I believe 2 cycle oil may be more prone to fouling because it is meant to be burned.
A good burn is difficult to achieve in an engine that always runs cool.
I am aware that some model engine guys like to use WD-40 however it is a fairly poor lubricant.


Do you think they would let us mail you a bottle of mystery oil?


Gil

Title: Re: Mystery Oil Substitute?
Post by: crazydoug on September 30, 2020, 08:11:25 am

Jim,
I guess it might depend on what you are using it for. I use wd-40 1-32 ratio with coleman fuel for running my hit/miss engines. Others use mystery oil in this application.
Beyond that , I can't help.
Surely others will have some info.
crazydoug

Title: Mystery Oil Substitute?
Post by: Jim on September 29, 2020, 09:53:00 pm

What is a suitable Mystery Oil Substitute?

Because Mystery Oil in Oz is just that...a mystery.