Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: Harry on April 11, 2023, 12:23:37

Title: Differential Oil
Post by: Harry on April 11, 2023, 12:23:37

I am about to refill my 1966 230SL differential oil with new oil and I find an old container still having some oil from a prior fill (when IU replaced the boot with a split boot).  That oil is Valvoline 80W-90 with Limited Slip.  I just bought the same but without the "Limited Slip".  What are the recommendations on oil for the differntial?

Harry

Title: Re: Differential Oil
Post by: Jowe on April 11, 2023, 18:28:29

You should use Hypoid gear oil SAE90. See the service manual at https://www.sl113.org/wiki/Restricted/ServiceManual

Title: Re: Differential Oil
Post by: kampala on April 11, 2023, 18:49:50

Do you have a Limited Slip Diff?    If so, you need the special oil designed for LSD.    Our Diffs have a special metal tag attached to the diff that mention Special Oil required if its an LSD (in German).

Sample photo - pulled of the net

Title: Re: Differential Oil
Post by: WRe on April 12, 2023, 05:59:59

Hi,
an "SP" can also be stamped next to the axle number and the axle ratio.
...WRe

Title: Re: Differential Oil
Post by: Harry on April 12, 2023, 15:21:24

No indication of limited slip.  Thank you!