Club 80-90 Forums

Hey,

I have a 1981 westy manual 4 speed I see SAE 80W/90 GL-4 is the recommended gear oil. My main question is there any difference between that oil and say an EP 80W/90 GL-4 I see Halfrauds seall the later?



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It is the same, SAE is the viscosity rating. EP means it is extreme pressure oil suitable for differentials.