Re: a little leaking some kind of oil or fluid on the bottom of my tansmission and en
The best you can do is give the engine a thorough clean & then see if you can see a leak after a short run.
Have a look at the top of the engine too, leaks can drip down from anywhere like the cam cover gasket for instance.
Get a dab of the mystery fluid & rub it between your fingers & have a sniff that will give a idea of the consistency ie, watery or oily & whether it's petrol or not.
Check the gaiters on the CV joints.
Keep an eye on your fluids & see if there's a noticeable change.