Superflan
Thread starter
Usually Peugeot or Renault cars, specified for 75W80 GL4 gearbox oils.Which vehicle, the Peugeot or the Suzuki?
Yeah, usually it was after fixes where we wouldn't put back the old oil in. Usually, if we put back the old oil in, there's no issue. New oil and never drained transmission with 150000+km on it: issues pretty much guaranteed. New oil in a transmission that has been flushed at 60000km: it would be okay. When there's an issue, either we put back some of the old oil into the transmission, or put CV grease and call it a day. It would run fine for at least 2 years, and at this point those cars are needing major repairs and will go to scrap.It may very well be short with Moly in there - the synchronizers may not work, they could slide instead of gripping and changing shaft speeds - and while it might feel smoother initially, I can see this causing gear wear and early failure.
Awfully risky.
That's really interesting Generally we use Total Gear8 75W80, GL4 and PSA approved. Believed to be the factory fill.With most MTF's, moly will compete with the friction modifier in the formulation and result in synchronizer slippage so it is not a good practice.
What specific oil did you add and what was its viscosity?
Like, every french manual transmission cars are filled for life, and a lot of Euro too.Yes, quite a few are these days. You're only supposed to change the fluid after a cllutch change or other work on the transmission.