Diff / Transfer / Gearbox Oil Change

M13A(non-VVT) Engine UK

Gearbox Oil 1.1 litres API GL-4 75W - 90
Transfer Gearbox Oil 0.8 litres API GL-4 75W - 90
Differential Oil (front) 1.1 litres API GL-5 80W - 90
Differential Oil (rear) 1.3 litres API GL-5 80W - 90

Check you can undo the filler plug before draining the oil out

Cheers mate

If you have the time, I recommend that you wait a few hours for each oil to drain.

By doing so, you will drain more old oil, which can be a significant amount.

My story:
I changed my front differential oil a month ago.
I removed the drain plug and let the old oil out. When the old oil stopped dripping, I plugged the drain valve. But just as I approached to pour new oil in, I realized I had something else more important to do. I came back to the garage in the afternoon to finish the job. But before I poured new oil, I decided to remove the drain plug one more time, just to see if any remaining old oil is there.

To my surprise, at least 200-300 ml of more old oil drained from the front diff!

Riccy wrote: Check you can undo the filler plug before draining the oil out

Ok so filler plug is proving to be a bit stubborn. Have soaked/sprayed with wd40 about a week ago and trying to use my ratchet (which seems like a good fit) and a ring spanner off the ratchet for leverage but it isn't moving. My torque wrench or my proper tool (for plug fitment) won't fit on the filler plug because the fuel tank is in the way.

Any suggestions or tips for me? Have sprayed again with wd40 but would really like this job done today and getting impatient

can you lock a good pair of mole grips on the outside edge

Jack

If I had a decent set of mole grips I could try!