diff failures - Oil??

[imagineifyeswill]

I dont think EP80/90 spec has changed recently but Im pretty certain GL5 is synthetic and Ive come across a few vehicles where there are clear instructions not to use synthetic oil.

[CaterBram]

Just tripped over this post

Had a very similar issue but thought the diff was built wrong, new crown & pinion . just had another diff go very similar leaving silver sludge in the bottom

Been using 75/90 gl5

Did you end up swapping oil , and did the diff survive on the new oil

[richhead]

HustleRussell said:

I used to race a Caterham with an Ital axle. New old stock Morris CWPs were used. The book fill quantity for the diff was less than a litre EP90 GL-4.

However the Caterham could corner a lot harder than a Morris Ital. The oil would simply sod off down the axle tube at the first sign of a corner, leaving the CWP to overheat. I wore a new diff out in a single day at Brands Hatch.

One solution would be improved baffles to keep the oil in the diff. As these weren’t allowed by regulations the next best solution was to add more oil.

I used to put three litres in. No problems thereafter.

this sounds like a more likely answer, either that or bad building of the diff, oil does very strange things when under g forces, i remember watching a video of fuel in a tank from i think atl, it goes into places you really wouldnt expect