Engine oil & gear oil are viscosity rated at different temperatures.
SAE90 gear oil is about the same viscosity as SAE 40-50 engine oil. Not
nearly as much heavier as the numbers would suggest.
Dave Russell
Mark LaPierre wrote:
>90Wt.? Another TR recommendation. Not too many manufactures suggesting
>that heavy gear oil.
>
>I believe that would be in the Hypoid class of lubricants?
>
>Mark
>
>
>----- Original Message -----
>From: "mike brooks" <hypercubic@yahoo.co.uk>
>To: <healeys@autox.team.net>
>Sent: Thursday, July 24, 2008 6:15 AM
>Subject: [Healeys] Fw: Overdrive
>
>
>
>
>> I think the hydraulic pressure in my
>>BN2 O/D is a little low, because it is very influenced by oil viscosity.
>>But it works fine with 90 gearbox oil (never drops out when I need it) so I
>>will leave well alone.
>>B
>>Thanks to you both for the input
>>B
>>Mike
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