So my gearbox has been getting worse slowly, and now I'm not sure what to do.
Has never been massively smooth since I bought it, and a couple of months ago it started sticking in 4th.
So I drained gearbox oil and took the end plate off for a clean up inside. Refilled with 2 litres of the proper Selenia (or as close as, maybe a dribble didn't make it in) Drove the car and the gearshift felt slightly worse
Few weeks pass with it kind of OK (not sticking in 4th anymore) and I go on holiday and left the car standing for 1 week.
Coming back to it and I've never felt the gear change so bad - every sync feels rough. Don't understand how sitting for 8 days can do this...
Can anyone recommend an oil for nearly-dead gearboxes?
To put this into perspective: this summer I need to decide whether I fully re-spray this car or sell it and move on
Thanks for your time guys