Is SAE 80-90 ok to use for rear axle? - PeachParts Mercedes-Benz Forum

pawoSD · #1 10-15-2009, 05:31 PM

I use Mobil 1 synthetic 75w90 in all of mine with no issues.

ps2cho · #2 10-15-2009, 05:33 PM

Quote:

Originally Posted by pawoSD

I use Mobil 1 synthetic 75w90 in all of mine with no issues.

What are the change intervals between Synthetic and non?

pawoSD · #3 10-15-2009, 05:55 PM

Quote:

Originally Posted by ps2cho

What are the change intervals between Synthetic and non?

Not sure about the interval, I do mine every few years....so probably 35-50k or so.....if I drove more than 14k a year I'd probably do it every other year.

280EZRider · #4 10-15-2009, 05:36 PM

Castrol Hypoy C Gear Oil 80-90 is fine. I've had it in my differential for a few years now. I checked it just a few days ago, and it was very clean.

ps2cho · #5 10-15-2009, 05:40 PM

Quote:

Originally Posted by 280EZRider

Castrol Hypoy C Gear Oil 80-90 is fine. I've had it in my differential for a few years now. I checked it just a few days ago, and it was very clean.

Ok cool. The guys at pepboys told me a while back (I do my own oil changes now though...) that they checked it and the oil was "like water"...so it needs to be changed.

Process looks straight forward. Remove fill plug, drain anything that comes out. Remove drain plug, drain all out. Replace drain plug. Fill until it starts coming out of fill plug then put fill plug back in.

Sound right? Any other tips?