After the last oil change 1 to 2 auto gear change takes a long time can any one explain the reason ?

It is a Mitsubishi Pajero diesel automatic After the last oil change 1 to 2 auto gear change takes a long time can any one explain the reason ?
that would have nothing to do with the oil change, have the tranny looked at and it might need the fluid and filter in it changed. After the last oil change 1 to 2 auto gear change takes a long time can any one explain the reason ?
If you are talking about the transmission fluid being changed, then I would guess it was replaced with the wrong type.





Automatic transmissions are very sensitive to fluid type, each manufacturer has a specific fluid for their vehicles.





The wrong type of fluid can change the co-efficient of friction between the bands and clutches and change the way your transmission shifts.





It's also possible that when the transmission pan was dropped, something fell out and was not replaced, some transmissions had a small control valve and spring that was held in by the filter. I'm not familiar with Mitsubishi, but some of the older ford transmissions were like that.





If you did the job yourself, check the owner's manual, and make sure you used the proper fluid, or that the shop did if you took it to one.
engine or gearbox[dextron] oil change?...engine oil change will have nothing to do with the box changing gear slower/longer...normally when auto boxes get low on oil the take longer to change and longer to select a gear once its put into drive....also check the ''kick down''...some are cable,some are electronic,they may need adjusting.
unsure of your question as in oil change.


did you mean engine type oil change or transmission type oil change.


engine oil change shouldn't affect the transmission at all.


transmission oil change would if you used the wrong transmission fluid.


also when the trans' is usually serviced the internal filter is replaced and the bands should be checked for the correct tension on the adjuster nut.


if you did the service yourself, you had better recheck the fluid you used and filter.


if you had it done by a mechanic then return it for a check.


good luck
do you have the correct speed? if so did you speak to your service point? better to do so.
check oil quality and correct viscosity has been used , have you been in a hotter than normal climate Spain or someplace . Read up on the automatic gear change gear box and oil mechanical set up and recommended lubricants . like yesterday .
Did you use the correct type of oil? It maybe the cause as its the only thing that has changed
Incorrect grade or quantity of gearbox oil added, or filter not changed.