'01 M3 Diff oil

Hi All.

Is there a required or recommended differential lube for my 2001 M3 Coupe?
TIA

Chris

On Sep 8, 8:04*am, "Planar1" > wrote:
> Hi All.
>
> Is there a required or recommended differential lube for my 2001 M3 Coupe?
> TIA
>
I think what's important is that you change your differential and
tranny oil on a regular consistent basis. I use either Redline or
Purple Royal synthetic fluids every 25-30K miles. Changing fluids is
probably the easiest d-i-y job you can do at home. Good Luck!

"Planar1" > wrote:
> Is there a required or recommended differential lube for my 2001 M3 Coupe?

The M's need a lube which can stand up to the torque and speed they
encounter. It was strongly suggested to me that RedLine 75W-140 should
be used. DO NOT use the NS suffix lube - you have a sophisticated
limited slip unit. In fact you may have to add a little more friction
modifier
to keep the growling and moaning down in turns.

Thanks for the tips, everyone.



"Bob Smitter" > wrote in message
...
> "Planar1" > wrote:
>> Is there a required or recommended differential lube for my 2001 M3
>> Coupe?
>
> The M's need a lube which can stand up to the torque and speed they
> encounter. It was strongly suggested to me that RedLine 75W-140 should
> be used. DO NOT use the NS suffix lube - you have a sophisticated
> limited slip unit. In fact you may have to add a little more friction
> modifier
> to keep the growling and moaning down in turns.
>

BTW, how much fluid does the diff hold? So I can buy the correct amount.


"Planar1" > wrote in message
...
> Thanks for the tips, everyone.
>
>
>
> "Bob Smitter" > wrote in message
> ...
>> "Planar1" > wrote:
>>> Is there a required or recommended differential lube for my 2001 M3
>>> Coupe?
>>
>> The M's need a lube which can stand up to the torque and speed they
>> encounter. It was strongly suggested to me that RedLine 75W-140 should
>> be used. DO NOT use the NS suffix lube - you have a sophisticated
>> limited slip unit. In fact you may have to add a little more friction
>> modifier
>> to keep the growling and moaning down in turns.
>>
>
>

"Planar1" > wrote:
> BTW, how much fluid does the diff hold? So I can buy the correct amount.

Naturally it takes about 1 1/4 quarts so that you have to buy 2.

Thanks!




"Bob Smitter" > wrote in message
...
> "Planar1" > wrote:
>> BTW, how much fluid does the diff hold? So I can buy the correct amount.
>
> Naturally it takes about 1 1/4 quarts so that you have to buy 2.
>

"Planar1" > wrote
> Hi All.
>
> Is there a required or recommended differential lube for my 2001 M3 Coupe?
> TIA

Look at http://bimmer.roadfly.com/bmw/forums...8028517-1.html
"The only approved oil is Castrol SAF-XJ 75W/140 for the limited > slip
differential in the M3"
There are indications that anything else, including possibly Redline, will
toast the diff.
I'd check with the dealer and a couple of indy shops before doing anything.

FloydR

"Floyd Rogers" > wrote in message
ition...
> "Planar1" > wrote
>> Hi All.
>>
>> Is there a required or recommended differential lube for my 2001 M3
>> Coupe? TIA
>
> Look at http://bimmer.roadfly.com/bmw/forums...8028517-1.html
> "The only approved oil is Castrol SAF-XJ 75W/140 for the limited > slip
> differential in the M3"
> There are indications that anything else, including possibly Redline, will
> toast the diff.
> I'd check with the dealer and a couple of indy shops before doing
> anything.
>
> FloydR
>
>
>
>

"Floyd Rogers" > wrote:
> Look at http://bimmer.roadfly.com/bmw/forums...8028517-1.html
> "The only approved oil is Castrol SAF-XJ 75W/140 for the limited > slip
> differential in the M3"
> There are indications that anything else, including possibly Redline, will
> toast the diff.
> I'd check with the dealer and a couple of indy shops before doing
> anything.

Ahh ... The experts at roadfly - always trust them. BTW, they are
completely
WRONG. The castrol sometimes causes loud noises in the diff which then
requires
a different fluid again. After you try all the overpriced BMW fluids and
are
convinced there are better, then you can adventure out. Like all the
nay-sayers
about the special auto trans fluids - the 7045E and LT71141 which cost a
fortune.
Both of those specs are met and exceeded by Amsoil ATF. Anyway, the dealer
will give you the company line. It is the indies that I rely upon, and the
ones I know
endorse the Redline (but note that's why I mentioned the 75W140 - that IS
important).