Any suggestions on a decent Gear Box Oil, my old bottle of Hypoy 90 is now an antique and probably worth a few quid for the packaging.
Anythjng decent from Halfords? for a 1256
Thanks
1972nail wrote:Whatever oil you choose go for GL4 spec as GL5 spec is too slippery for our old synchromesh gearboxes.
1972nail wrote:Yes, I used a modern GL5 oil in my OHC gearbox when I first fitted it as that's what my supplier gave me. I found that all changes were baulky and slow, I blamed the box for being worn but before giving up on it I swapped over to Millers GL4 mineral spec and there was improvement but not a complete cure. The box was replaced and GL4 is now used in it with no problems.
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