well just for the record it was a bad valve train due to the dealer taking money to "change the oil" but he only keep the car for a full one day and skip the oil change ..... to be safe every 30,000 km change the oil
anyway i replaced the valve body and bought the oil in a 90 litter can (nissan matic J)
for the old valve body i found some diagrams on the net so i will try replacing the valves and keep it as a spare part .
also i think its a bad design putting the ecu inside the tranny , for sure that thing is frying .
changed the centre diff oil (matic d)
front final drive api gl-5 80w90 (gl5 is important because of the synchronizres)
rear 75w-90 (gl5 is important because of the synchronizres)
3times more expensive than 80w but bought it to be safier
tried to buy these oils from nissan dealer (front end and rear end ) but in the begging they said they dont sell it and they bring it from japan in 1000 liter cans and if i want they will sell me the 1000 Liter

, after going to the repair section the maintenance guy told me they just buy locally from an agip dealer and i went bought it there .
for engine oil iam putting castrol gtx or motorcraft 10-w40 temp range is 25c winter and 50c summer .