Gearbox Oil

[marvinGT4]

Marvins having his gearbox oil changed this weekend i have been told to use carlube 75-90 but i have noticed some of you use the synthetic oil. is the difference really that noticable? I havent purchased any yet just wondered what you thought

[Jones~32]

I run Mobil 1 75-90 Synthetic in mine, no problems, gear change is smooth :)

[daktari]

The synthetic maintains its properties better than mineral. With the added benefit it doesn`t thicken up so much when it cools down and doesn`t thin out too much when hot. Giving maximum protection hot or cold. Gearboxes are notoriously harsh on oil. Makes you wonder why they don`t change the oil more frequently.

[dawesy]

millers TRX 7w90 top quality oil

[marvinGT4]

The synthetic maintains its properties better than mineral. With the added benefit it doesn`t thicken up so much when it cools down and doesn`t thin out too much when hot. Giving maximum protection hot or cold. Gearboxes are notoriously harsh on oil. Makes you wonder why they don`t change the oil more frequently.

thanks for the advice ,hes had his oil change and gearbox oil changed and hes driving like a dream.

great improvement on the gear changing Im convinced its not physcological!

thanks again :D

[Sketchy]

It's also very important that you don't use a lower quality oil in the ST205 gearbox because it also fills the transer and front diff hence the requirement for API GL5 grade oil.

[Fizz]

I'll need to remember this info for when i get mine ready for the nurburgring.. :)

!Removed! ages away yet but sooo much to do! :(

[Sketchy]

I'll need to remember this info for when i get mine ready for the nurburgring.. :)

!Removed! ages away yet but sooo much to do! :(

I use silkolene sync 5, covers grades for both gearbox,transfer etc and also rear diff

What ever you do don't use LSD oil for the rear diff... It's a torsen diff not plate limited slip diff