Not so sure about that. Many older manuals called for 30 Wt oil. Last
I knew, so did John Esposito (appologies if I did not spell that
right) of Quantum Mechanics. There seems to be some variance on that
among experts.
Bob Shaw
shaws@mlcltd.com
My MGA is not leaking,
It is merely marking its territory
On Jul 22, 2008, at 4:01 PM, Simon Matthews wrote:
> Stuart,
>
> You should consider changing that oil for MT90. If you look at Redline
> Oil's website, you will see that MTL is equivalent to 5W30/10W30
> engine oil, which is slightly thinner than the recommended 20W50. MTL
> is slightly thicker, although still not quite 20W50.
>
> I use MT90 in my MGA, although I originally used MTL. I can't say that
> I noticed a difference when I changed to MT90
>
> Regards,
> Simon
>
>
> On Tue, Jul 22, 2008 at 12:45 PM, Stuart MacMillan
> <macgroup@comcast.net> wrote:
>> At least you don't have an OD tranny, but it would probably work
>> sort of
>> okay there too. 90w gear oil makes is harder to shift because the
>> synchro
>> rings have a thicker, slipperier layer of oil between them and the
>> cone on
>> the dog gear. I think the ears on the rings will wear faster the
>> harder you
>> have to shift
>>
>> At the risk of igniting flames, I've used Red Line MTL for over 13
>> years in
>> my '65 with OD, and for 5 years in my daughter's '71 GT, also with
>> OD.
>> Great stuff. Shifting is quicker, OD works great, and you never
>> have to
>> change it.
>>
>> Stuart
>>
>>
>>
>> -----Original Message-----
>> From: mgs-bounces+macgroup=comcast.net@autox.team.net
>> [mailto:mgs-bounces+macgroup=comcast.net@autox.team.net] On Behalf
>> Of Paul
>> Hunt
>> Sent: Tuesday, July 22, 2008 1:03 AM
>> To: MG List; mg-mgb@yahoogroups.com
>> Subject: Re: [Mgs] 90w in Transmission?
>>
>> This is a fallacy. Factory V8s have 90 gear oil as standard, mine
>> was a
>> daily
>> driver parked outside for many years including periods of below
>> freezing and
>> I
>> never had a problem, but I can't speak for the condition of anyone
>> else's
>> gearbox. As long as it *is* gear oil, and not *differential* oil
>> it should
>> be
>> OK, don't junk it now just wait and see how you get on.
>>
>> PaulH.
>> ----- Original Message -----
>>
>>
>> ... With the engine cold, even in the
>> summer, the 90W will be too thick for the snycros to work
>> properly...
>> Mgs@autox.team.net
>> http://autox.team.net/mailman/listinfo/mgs
>>
>> http://www.team.net/archive
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