EP140 instead of EP 90 in Differential
Discussion
Does anyone on here run EP140 in their classic car differential? I have a 1965 Sunbeam and was advised that putting EP140 in the back axle instead of the Rootes recommended EP90 was a good idea. The thicker oil apparently helps older axles in some way.
Anyone do it or are there any downsides if I tried it?
Anyone do it or are there any downsides if I tried it?
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