Marvel Mystery Oil Question "Judson SC ?"

2,577 posts · joined May 2004 · 13 Feb 2008, 1:49 pm

#632450

What other oil can bee used instead of this product in Judson Superchargers etc. I believe any mineral based SAE 0w - 20 or 30w will do, but not synthetic or blended oil?

I'm basically looking for a readily available ( Autopro / super cheap etc) product instead of having to import or spend a fortune on some oil no ones heard of.

Assistance and opinions welcome.

Thanks
Peter / Bones

Judsons4eva Officially Full-On Dubber

270 posts · joined Oct 2004 · 13 Feb 2008, 2:56 pm

#632454

I think Dave Birchall will confirm this - on Dave's suggestion I use ATF and it works well. It is also the same colour at MMO so in the bottle it looks same. I have some real stuff and it is a little thinner than ATF and smells a bit like ether (nice). The other alternative is any upper cylinder lubricant - Techron, Redex, Morey's or yr Ampco oil. etc.

Ken

550 Porsche Spyder
56 Oval mit Judson
96 Porsche 993 C2

VWFREAK VWFREAK

2,577 posts · joined May 2004 · 13 Feb 2008, 5:07 pm

#632482

Are these oils readily available in Australia, Techron, Redex and Morey's ?

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 13 Feb 2008, 5:59 pm

#632489

the oil needs to be combustable as its fed into the fuel mix to keep the vanes lubricated so u cant just use off the shelf oils but im sure there would be some alternative around

like said about speak to birchall

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 13 Feb 2008, 6:04 pm

#632491

taken from a judson info site

As the vanes need to be kept well lubricated, oil is fed to the inlet manifold of the Judson from a glass container filled with engine oil. This oil is drawn into the supercharger by inlet vacuum and, after lubricating the vanes, passes into the engine to be burnt along with the fuel. Judson claimed this helped engine longevity by acting as an upper cylinder lubricant.

VWFREAK VWFREAK

2,577 posts · joined May 2004 · 13 Feb 2008, 8:08 pm

#632522

Thanks for the info guys.

Problem solved.

Judsons4eva Officially Full-On Dubber

270 posts · joined Oct 2004 · 13 Feb 2008, 8:20 pm

#632524

Bone Collector wrote:Are these oils readily available in Australia, Techron, Redex and Morey's ?

yes - caltex sell techron

550 Porsche Spyder
56 Oval mit Judson
96 Porsche 993 C2

BUGBOY Moderator Chief Toy Dude / Head Cruiser

2,147 posts · joined Aug 2002 · 13 Feb 2008, 9:33 pm

#632544

I was nearly out of head lube!

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