Hi
I drained & refilled the gearbox oil on my 2001 td5 today. The oil that came out was supposedly done in July but over the recent weeks I'm doing all the oils & fluids.
When I drained it out Id driven around 5-6 miles so it wasn't hot or cold really

But it was a very brown muddy colour
The gearbox doesn't leak & it no serious off-roading

Just wandered what others have had & if I should perhaps do it again in a couple months

Thanks