Gearbox / diff oil
- Thread starter Simon 3.2M
- Start date
Simon 3.2M
Senior member
Standard stuff mate
Spaniarduk
Member
Hello [ref]Simon 3.2M[/ref], did you use the same Castrol 75w 140 grade for gearbox and the diff?Simon 3.2M said:Castrol 75w 140 from ECP
Spaniarduk
Member
Is it then...
?R60BBA said:
I'm trying to find out what fluid to put in the gearbox and diff on my M Roady, I saw the post re
"R60BBA wrote: ā
Wed Aug 15, 2018 6:23 am
Gearbox - Redline MTL 70w-80 GL4 (1.7 litres)
Differential - Castrol Syntrax LSD 75W 140 (1.2 litres)"
Never heard of Redline ?? Also , my indy was looking online and everything was pointing toward ATF ..?? I haven't checked with BMW yet but may have to.. they treat me well for some unknown reason, it could be because they like my Interlagos blue M (they don't see too many on Vancouver Island , either that or they think I will trade in my Porker for a new BMW, either way if they want to give me a discount I'll gladly take it
)
Anything else I should know about ? ... I do live on an island in the Pacific and good car stuff is not that plentiful here.
"R60BBA wrote: ā
Wed Aug 15, 2018 6:23 am
Gearbox - Redline MTL 70w-80 GL4 (1.7 litres)
Differential - Castrol Syntrax LSD 75W 140 (1.2 litres)"
Never heard of Redline ?? Also , my indy was looking online and everything was pointing toward ATF ..?? I haven't checked with BMW yet but may have to.. they treat me well for some unknown reason, it could be because they like my Interlagos blue M (they don't see too many on Vancouver Island , either that or they think I will trade in my Porker for a new BMW, either way if they want to give me a discount I'll gladly take it
)Anything else I should know about ? ... I do live on an island in the Pacific and good car stuff is not that plentiful here.
Spaniarduk said:
What are you questioning?
If you havenāt heard of something then look it up.mcbeee said:I'm trying to find out what fluid to put in the gearbox and diff on my M Roady, I saw the post re
"R60BBA wrote: ā
Wed Aug 15, 2018 6:23 am
Gearbox - Redline MTL 70w-80 GL4 (1.7 litres)
Differential - Castrol Syntrax LSD 75W 140 (1.2 litres)"
Never heard of Redline ?? Also , my indy was looking online and everything was pointing toward ATF ..?? I haven't checked with BMW yet but may have to.. they treat me well for some unknown reason, it could be because they like my Interlagos blue M (they don't see too many on Vancouver Island , either that or they think I will trade in my Porker for a new BMW, either way if they want to give me a discount I'll gladly take it
Anything else I should know about ? ... I do live on an island in the Pacific and good car stuff is not that plentiful here.
https://www.opieoils.co.uk/p-1019-red-line-synthetic-manual-transmission-lubricant-mtl-75w-80-gl4.aspx
If you donāt want to use aftermarket fluids then just use Genuine BMW fluids instead.
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Spaniarduk
Member
What i used for my gearbox and LSD diff
Spaniarduk
Member
R60BBA said:
Pardon?? There is no question (nor a question mark at the end). Those products are "what' I used'. 'What I used' being the subordinate sentence. Sorry I omitted the start. :?
Having done the Diff oil in my Z4M with a LSD I looked on line and checked with the Indy that is local to me in Cleethorpes http://simonthorpebmw.com and I went along with his recommendations of use Castrol Syntrax Limited Slip 75W 140 Fluid mixed with RED LINE Limited-Slip Differential Friction Modifier, or use the genuine stuff (unless you want it to go bang he said)
The gearbox should have a label on it (yellow or orange) and there is two types of recommended oil for the gearbox depending on which label you have.
The gearbox should have a label on it (yellow or orange) and there is two types of recommended oil for the gearbox depending on which label you have.
Spaniarduk
Member
I agree. However i only noticed it once i had already purchased the oil, which according to it it was the wrong one. I still went ahead and used it. The gear change was much improved after that, so that could only mean what went in does a better job that what came out.PDJ said:
Spaniarduk
Member
[ref]R60BBA[/ref], oh I see now! That was before I went ahead and bought it. I wanted to be 100% sure I was getting. I think i had brain fog that day 
