problems finding gears after gearbox oil change e39 m5

[Harbinder Sembi]

Hi all just had my E39 M5 gearbox oil changed, but this morning I found difficulty finding gears until it had warmed up for about 10 mins or so. Is this normal after gearbox oil change. Please advise
Sembi

[helix402]

No, new oil should improve the change. Has the correct oil been used?

[Harbinder Sembi]

Hi, yes I believe so I used Royal Purple 75W-90. Highly recommended on forums. Iv have handed the car back to the garage they are going to look at it from a cold start in the morning.
thank you Sembi

[ecain63]

Funny how this is straight after you were singing the praises of that garage nobody knows of. lol

I do feel for you though,

Edited by ecain63 on Wednesday 20th February 19:22

[Harbinder Sembi]

Your not kidding man. I have just read not to use non BMW approved oils in Getrag boxes because they were devolped with the Castrol oil. So probably my fault for trying Royal Purple.

[helix402]

The BMW specified oil for the M5 is MTF-LT-2, this superceeds MTF-LT-1. Hope you get it sorted.

[Harbinder Sembi]

Thank you Helix. I have to say when it warmed up it was soooo smooth but the warm up period was a pain. There was no crunching noises or anything just really notchy. I'm going to instruct them to put the M5 BMW recommended tried and trusted oil in to be on the safe side. And damn the experiments

[cosworth330]

I put RP in my M3 when i had it and had no problems but i have heard of this before on the E39 M5, would only ever use the original castrol in the M5. Post up to let us know if it makes any difference.

Simon.

[Harbinder Sembi]

Hi Simon. The garage are looking into this morning from a cold start. If they cannot come up for a reason I will be asking them to put Castrol in then post the results in the forum
thanks Simon

[Harbinder Sembi]

Hi just had my phone call from the garage. Not good they agree the gears are notchy when cold but normal after warm up. They suggest oil from BMW dealership but at a cost of £163. £50 of which is labour. Hmmm what to do I'm just asking the question is the gearbox being damaged whilst it warms up.
thank you Sembi

[E30M3SE]

Harbinder Sembi said:

Hi just had my phone call from the garage. Not good they agree the gears are notchy when cold but normal after warm up. They suggest oil from BMW dealership but at a cost of £163. £50 of which is labour. Hmmm what to do I'm just asking the question is the gearbox being damaged whilst it warms up.
thank you Sembi

Sembi Ji, your not doing your g'box any favours. Just put the right oil in.

[Harbinder Sembi]

Yes of course your right,lesson learnt hey. They are doing it tomorrow very painfull to dish out £163. Thanks man, Sembi ji hey you seem to be a brother. Cosworth Simon this morning suggested the same thing.
thanks guys Sembi

[E30M3SE]

[Harbinder Sembi]

[cosworth330]

Reading all your posts this M5 is certainly costing you some dollar at the moment !

[HoagieLomax]

The oil should be RP syncromax,did you put the right stuff in?

[Harbinder Sembi]

Hi Hoagie Lomax the garage said the right oil was used RP 75W-90 just not a BMW approved one. Just looked at the receipt by Fluids in Motorsport who supplied me the RP its deffo 75W-90 but looks like it says max gear not very clear its hand written. Something to check on in the morning.
thanks Sembi

[ndj]

How long have you owned this car? I've had 2 E39 M5's and both had "notchy" gear changes until warmed. Characteristic of that 'box?

[HoagieLomax]

Harbinder Sembi said:

Hi Hoagie Lomax the garage said the right oil was used RP 75W-90 just not a BMW approved one. Just looked at the receipt by Fluids in Motorsport who supplied me the RP its deffo 75W-90 but looks like it says max gear not very clear its hand written. Something to check on in the morning.
thanks Sembi

That is for the diff not the box.!!

[HoagieLomax]

Gearbox- LTF-2 or RP Syncromax

Diff LSD only oil- Castrol 75 140

75-90 is for non LSD diffs and won't work anywhere on your car.