Hi Jeff
Definitely stick to the GL4 stuff as the synchro rings in the tranny are brass
and will be affected by the sulfer in GL5 or Hypoid lube.
Vic Whitmore
76 Spitfire
Thornhill, Ontario
http://www.vicwhit.com
Jeff Gruber wrote:
>
> I'm ready to put fresh oil in the gear box of my 77 Spit.
> The manual says to use Hypoid SAE 90 EP.
> But I can't find EP. I am told this equates to GL4 rating.
> And I've read a posting that says do not use Hypoid in the gearbox.
> And I've been told that GL5 should not be used cuz it can damage brass
> fittings and some Triumph transmissions have brass fittings.
> Sooooooo
> 1) Should I use Hypoid or not?
> 2) Does a 77 Spitfire have brass bits in the transmissions or is it safe to
> use GL5?
> 3) And most of the oil I see in the stores is multi-viscosity. Is it ok to
> use one of those?
> Thanks.
> Jeff "Still Trying to Name My Spit" Gruber
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