What I mean is - seeing through all the codes and numbers and sorting a problem. My problem is that my gearbox has a basic breather on the top cover - a little plastic thing with tiny grooves to vent the box. it isn't blocked and anyone might think it should work as it also has an internal baffle. I added lubricant to the level plug hole - an 80/90 grade from local motor store. Drove till the whole lot was warm and oil was running steady from the breather. Maybe the oil was foaming excessively and perhaps a better oil might foam less but looking on the net I read gear oils dont contain anti-foaming agent as they are purely a splash system. Maybe.
Another thing - my kawasaki race bike ran a fully synthetic Rock oil, Syn4 15/50, and this did well for both the engine and gearbox. I have a big can of this oil so why not put this in my car gearbox as its much the same setup as the car. Maybe it wont foam so much and it certainly will be a better quality oil if price is anything to do with it and as far as temperature is concerned it will be running cooler than the bike as the cambox was acting as an oil boiler. My hesitance is due to the different grades - can I change an 80/90 for a 15/50? I will fit a different breather anyway, a short pipe with a long tube running up into the engine bay, with a catch tank if necessary that will also drain back, a sort of anti-froth tower. What do you think?