Can anyone shed any light on this problem?
I have a 79 Suzuki GS550e and recently changed the oil from 10w40 to 15w50. I did this because it was burning a bit of oil and has high mileage and is generally a bit on the worn side. I had been running Silkoline 10w40 but this time went for Castrol Activ 4T 15w50.
Since the oil change (and I'm pretty certain this isn't just in my head) the gear change has become harsh and it's now difficult to select nuetral.
Now with my limited knowledge I had assumed that the change would if anything have become easier using the slightly heavier grade, not the other way around.
Did I mess up? Everything I've read indicates that this oil is suitable for wet clutches but could I be wrong or would that only effect the clutch operation (which is still fine) and not the gearbox.
Cheers for any help.
Bookmarks