Hi all I have a few issues with my auto gearbox since changing the oil and filter (slight wear through of sump caused overnight leak which meant repairing sump and fitting new filter/filling with oil)
Now since this the gearbox has a slight whining noise when revving through each gear almost similar to the noise of a blown turbo. Also, when driving the car will not keep up the revs if I lift off the throttle, for example if I'm at 60mph in 5th gear and the engine is at 2000rpm once I lift my foot off the revs drop to around 1100 rpm, this applies to any rev and any gear.
Now I am wondering if the wrong oil would cause these issues? It is more noticeable as the engine/gearbox is warmer which would suggest the oil thinning too much?
The oil I used is for CVT gearboxes which I later found out my gearbox is not as it is a triptronic box (the 1 which shouldn't give bother).
If anyone has any info or advice please let me know, if you can point me in the right direction of the correct oil to use that would be great.
Also just to note the gearbox was filled properly, warmed up and ran through each gear (held roughly 8 litres). And the car was not drove without gear oil at all!
Thanks in advance for any info.