[Healeys] Royal Purple for Differential

[edic at tampabay.rr.com]

Folks,

Does anyone know if Royal Purple synthetic oil SAE75W-140 would be OK to use
in the differential. I just had my new 3.55 pinion and crown wheel
installed and the mechanic recommended this oil. I donbt want to start an
oil war so please, anyone who is knowledgeable in this area can reply off
list. Thanks
in advance for the help.

Mel Brunet
HBJ8L/39749
Land O Lakes, Fl