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2006 3.0si what's people's opinions on oil. Should I replace with standard factory oil or use upgraded oils car booked in Thursday for a service

I put Castrol Syntrans B75W (API GL-4, ZF TE-ML 11) in my gearbox April 2017. Quieter and much smoother changes. No complaints and would definitely use the same again

patriot66 wrote: ↑Tue Oct 02, 2018 2:20 pm I put Castrol Syntrans B75W (API GL-4, ZF TE-ML 11) in my gearbox April 2017. Quieter and much smoother changes. No complaints and would definitely use the same again

Perfect silly question how many litres will I need

Used Miller's 75w80 myself, again perfectly smooth changes.

Factory spec is a 75w80 oil that meets GL4 specifications, so stick with that and you won't go wrong. Quantity is roughly 1l. Best bet is to buy 2 1l bottles, that way you won't be caught short but could return one if you don't need it?

Opie oils will normally be a good place for info.

https://www.opieoils.co.uk/

Perfect guys thanks for the info

Just an update has the gearbox oil done and what a difference it has made. My gearbox was quite notchy but now its a real pleasure

Which oil did you end up using?

Just ended up using the Bmw specific. My bmw indy gets huge discount on it. Might not be the best oil going compared to others mentioned but the difference is night and day

Kierandc5 wrote: ↑Thu Oct 11, 2018 8:38 am Just an update has the gearbox oil done and what a difference it has made. My gearbox was quite notchy but now its a real pleasure

What mileage are you on? I’ve been thinking now would be a perfect time to change mine at 44k

Silverzedtom wrote: ↑Thu Oct 11, 2018 12:55 pm

Kierandc5 wrote: ↑Thu Oct 11, 2018 8:38 am Just an update has the gearbox oil done and what a difference it has made. My gearbox was quite notchy but now its a real pleasure

What mileage are you on? I’ve been thinking now would be a perfect time to change mine at 44k

Wow that's low mileage mine is just past 95,000 miles. I would get it done as its pretty cheap. I was charged 120 for gearbox oil, engine oil, oil filter, suspension check and a full diagnostic in my mind I have fallen in love with the gear changes