[Healeys] transmission / OD oil

[Oudesluys]

Redline MT90 is fine although some people seem to experience 
leaking/sweating of the gearbox. EP oils are in general best for all 
steel gearboxes and most differentials.
Kees Oudesluijs


Michael Oritt schreef op 25-8-2014 22:41:
> Kees--
>
> Over here at least the products that are corrosive to yellow metals 
> are labelled GL5 and are described as "Gear Oil", usually employing 
> words such as "High Pressure or "Extreme Pressure".
>
> Some of these are rated as "GL4/5" but I am suspicious about their 
> suitability for either transmission or diff:  If they do not contain a 
> mix that gives "Extreme Pressure" protection they may or may not be 
> okay for brass parts but probably are not up to the loads that hypoid 
> gears impose.  OTOH if they are safe for the diff they might not be 
> good for the transmission for opposite reasons.
>
> I'll stick with Redline MT90 in my transmissions, both street and 
> track, and any quality diff oil.
>
> Best--Michael Oritt
>
>
> On Mon, Aug 25, 2014 at 4:31 PM, Oudesluys <coudesluijs at chello.nl 
> <mailto:coudesluijs at chello.nl>> wrote:
>
>     SAE 30,40, 20W50 etc. is fine for OD gearboxes and gearboxes with
>     brass/bronze parts like synchro rings or forks. Do not use EP80/90
>     as they may contain F, Cl and other elements based dopes that can
>     be harmful to certain parts.
>
>     Kees Oudesluijs
>
>     MIKE LEWIS schreef op 25-8-2014 22:14:
>
>         Thought I would add that in the opinion of Healey trans/OD
>         rebuilders like
>         Quantam Mechanics and Healey Surgeons best oil for the Healey
>         Type A overdrive
>         is a non detergent, 30 or 40 weight. QM only recommends 30 wt
>         from what I
>         understand. The other oils like 20w50 that contain the
>         detergent additives are
>         not ideal for our overdrives.  I use 40 wt ND which you can
>         get off of Amazon
>         as otherwise hard to find a 40 wt ND.  think 30 wt ND is
>         available from
>         several sources.
>         Regards
>         Mike Lewis
>         1956 100M
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