Paul: Isn't the Castrol 20-50 a detergent oil? I have always used it in my LBCs
but
assumed it was a detergent based oil. The 30 wt. I get for the trannies is
specifically
non-detergent.
Frank
wizardz wrote:
> The key word there is non-detergent!.
> Yep.. MG's... same oil in the engine and tranny.
> I use Castrol 20-50 year round here in MD in my engine and O/D
> tranny. Always have... always will.
>
> Now the interesting thing to me is .... on a N.d.V O/D tranny...
> in an MG we use '30' weight..... yet in Triumph Spitfire NdV O/D tranny
> I've always used (as the original literature that came with it when I bought
>it new)
> 90 wt.
>
> Paul Tegler wizardz@toad.net http://www.teglerizer.com
>
> ----- Original Message -----
> From: "frank krajewski" <frankk@intap.net>
> To: "MG List" <mgs@autox.team.net>
> Sent: Monday, August 14, 2000 9:22 PM
> Subject: OD
>
> I recently acquired a very rusty 79B which I am proceeding to part out.
> It has an od tranny that works fine which I am going to put in my 80 B.
> My shop manual (Bentley) says to fill the tranny, drive it, then check
> the dipstick as the oil will flow back to fill the od. As far as I know
> the late model trannies do not have a dipstick but simply a side filler
> hole into which you add oil until it runs out. Am I missing something or
> do the od trannies have a dipstick? I haven't removed it yet from the 79
> but I did find a grommet behind the console which plugged a hole in the
> transmission tunnel, but after reaching in the hole and groping the
> tranny I could not locate a dipstick. Is it a matter of side filling the
> tranny, running the car and then topping off the tranny? As an aside the
> Bentley Manual recommends the same oil for the engine and tranny or to
> use 90 weight hypoid differential oil. I have always used 30 wt.
> non-detergent in my MG trannies, my 64, 80, and my MGA. What is the
> final word? I know we have beaten this to death but there seems to be
> some inconsistency in the shop manuals. I always preferred Bentley to
> Haynes since it is a repro of the factory manual.
> Frank "Swamp Yankee" Krajewski
> http://www.bmcne.com
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