[Healeys] Rear Axle Oil

Harold Manifold manifold at telus.net
Fri Jan 10 18:55:09 MST 2020

Transmission or differential?

Differential is 80W-90 API GL-5
Transmission is 75W-90 API GL-4

The biggest difference you will notice with synthetic gear oils is they leak
more than non-synthetic. There are likely other difference but they won't
show until 100,000 miles of hard driving.


-----Original Message-----
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of R.
Sent: Friday, January 10, 2020 8:55 AM
To: Healey List
Subject: [Healeys] Rear Axle Oil

Can I use Synthetic 75W90 gear oil in my BJ8?

Price Lindsay
67 BJ8

Sent from my iPhone
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