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RE: Best way to change tranny & axle oil?

To:, "'The MG List'" <>
Subject: RE: Best way to change tranny & axle oil?
From: "Jerry Causey" <>
Date: Mon, 2 Dec 1996 22:10:37 +0800
Strange, my Haynes manual, for all models of the MGB Roadster and GT 
Coupe with 1798cc engine,  says use Castrol GTX 20w/50 in the gearbox 
and overdrive, and Castrol Hypoy B90 in the rear axle (p.11 in the 
1981 edition, p.9 in the 1977 edition). 

However, a lot has changed in the past 15 years, including lubricants, so I 
opt for Red Line synthetics in my '67 GT's gearbox and diff.

Jerry Causey

Jerry Causey

> Wait a minute...
>       The Haynes manual (which I HAVE read <g>), says to use the 90W gear 
>lube in the tranny, as did Jay Rittenour, the owner of The MG Centre, a 
>specialist shop near here.  
>       My point is, I have no desire to play around with different oils/lubes, 
>I just want what is tried and true, and proven to work well.  This can be 
>difficult to find out, as different sources (people
>       I appreciate the help from all of you, and this is not meant to be a 
>flame, or start another tirade.  You folks have to understand that some of us 
>don't know any better on some things, and it's har
> Thanks!
> J
> ----------
> From:         A. B. Bonds[]
> Sent:         Monday, December 02, 1996 6:15 PM
> To:
> Subject:      RE: Best way to change tranny & axle oil?
> In <>, Jason F. Dutt wrote:
> >I'm glad you said this! Is this true for the axle as well? I was told 
> >regular 90w gear oil is appropriate for both these applications.
> >Should I use the same Castrol GTX 20w50 that I use in the motor in
> >these? 
> >>Thanks, 
> >>J
> ------>  Not a Flame  <-------
> Listen carefully, guy and gals.  About 75% of the questions flying
> around in the last few weeks especially have centered on fundamental
> issues like "What kind of oil should I use".
> These are answered in the most authoritative way in either the
> owner's manual or the shop manual.
> <snip>

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