08-08-2022, 10:07 AM
There's plenty to read about on this topic in the above search box. I have used a suitable EP oil for over fifty years with none of the troubles some would suggest. As "recently" as 1950, in the Official Austin Publication For Light Cars, Ref 2230, there is a list of the many companies supplying lubricants and it states that a 140 EP rear axle oil is required for all Austins from The Seven through to The Fourteen. Shell Spirax 140 EP is just one of them. If there was a problem with sulphur attack or any other serious effect It would have been noted long ago and changes made to this recommended lubricant. I have yet to see a component that has suffered "attack". Let's here from those who have.
Ron
Ron