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Re: Gearbox Oil

To: "healeylist" <healeys@autox.team.net>
Subject: Re: Gearbox Oil
From: "Bob Spidell" <bspidell@pacbell.net>
Date: Sat, 3 Apr 2004 10:25:52 -0800
Based on the recommendation of Dave Russell--whom I'll hold personally
responsible for any problems ;)--I've decided to try MT90 in my BJ8.

I'm not inclined to do any special flushing to change from 20W-50, so I'm 
wondering if anybody has any thoughts, caveats, etc. to share.


bs

********************************************
Bob Spidell         San Jose, CA        bspidell@pacbell.net
'67 Austin-Healey 3000             '56 Austin-Healey 100M
********************************************

----- Original Message ----- 
From: "Dave & Marlene" <rusd@velocitus.net>
To: "John P. New" <jnew@hazelden.ca>
Cc: "Healey List" <healeys@autox.team.net>
Sent: Monday, March 29, 2004 1:48 PM
Subject: Re: Gearbox Oil


> John,
> 
> Usually, on big Healeys, the gear box oil is self changing. MT90 will 
> likely last as long as it stays in the gear box.
> 
> But seriously, when I changed from motor oil to MT90 I was surprised at 
> the much quicker, smoother shifting. No doubt due to the greater 
> friction coefficient allowing the synchro rings to grab quicker & 
> harder. the difference in performance was worth the additional cost.
> 
> Dave Russell
> BN2
> 
> John P. New wrote:
> > There was a thread a couple of months ago about recommended gearbox oil,
> > so I decided to price some Red Line MTL or MT90 oil for my gearbox and
> > nearly fell over at the price (CDN$15.60 per quart plus shipping) vs.
> > 30wt motor oil (about CDN$3.16 per quart).
> > 
> > Now I believe the Red Line product is synthetic and lasts much longer
> > than regular oil, but at five times the price, I can change the oil A
> > LOT and still be farther ahead.
> > 
> > So my question is, what is the oil change interval of synthetic vs.
> > regular gearbox oil? Once I have a feel for that, I can decide whether
> > the financial "disadvantage" of the Red Line product is outweighed by
> > its technical advantages over straight 30wt (as enumerated many times in
> > the archives).
> > 
> > John P. New
> > London, Ontario, Canada
> > '67 BJ8





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