[Healeys] Transmission troubles

[Michael Hartfield]

Does than mean my using Redline MT-90 in my Healey would be the wrong oil?


David Nockhealeydoc at sbcglobal.net

> The Red Line Gear oils are several different ones
> 
> Red Line MTL is a 75/80 gear oil.  This is designed for a manual
> transmission that requires 30 wt oils.
> 
> Red Line 90wt gear oils are designed for transmissions and rear axle
> units that require a 90 wt gear oil, This will also vary if you have
> a limit slip rear axle.
> 
> Also gear oils do not have the same viscocity ratings as engine oils
> so a 75/80 gear oil is the same as a 30 wt engine oil. The British
> transmissions that did not have a syncro  first gear did  not use a
> 90wt gear oil that all required a 30wt non detergent engine oil.
> 
> 
> 
> 
> 
> David Nock
> British Car Specialists
> Stockton Ca 95205
> 209-948-8767
> 
> www.britishcarspecialists.com
> ..
> ..
> 
> On Jul 28, 2009, at 10:21 AM, writeian at aol.com wrote:
> 
>> I made a mistake reporting the fluid-oil my friend had used in the
>> gearbox of his '60 BN7 who experienced a gearbox failure requiring
>> replacement.? He had been using Redline 75W90NS whether that is the
>> MT or MTL fluid-oil.
>> 
>> I use?SAE 30 non-detergent oil in my '60 3000 gearbox and its
>> overdrive and will probably not ever use anything else, period.
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