David, from the Redline web site, they show the MT 90 as 15W-40 wt.
engine oil. I've been running the MT 90 in 2 cars for about 2 years
and the results are smother shifting and less noise. I haven't
noticed it as being to heavy at all. Just the opposite. ???????
What is the downside?
I hope we aren't getting into another engine oil debate with no
conclusion.
Randy
Randy Hicks
'56 100M
'62 BN7 MkII
'65 BJ8
'53 MGTD
Healey100M@gmail.com
On May 21, 2007, at 3:47 PM, David Nock wrote:
> The gearbox and overdrive call for 30 wt oil. The MTL is a 75W/80 wt
> GL4 gear oil that has a SAE viscosity of 10/ 30 wt engine oils.
>
> The MT 90 is a 75W90 wt GL4 gear oil and the viscosity is that of a
> 90wt gear oil which is to heavy for the Healey gearbox.
>
> We have been using this in the transmissions for about a year with
> not problems.
>
>
>
>
> David Nock
> British Car Specialists
> Stockton Ca 95205
> 209-948-8767
>
> www.britishcarspecialists.com
> .
> .
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