I can't find any 85W-90 gear oil at any of the local auto parts stores. Is it okay if I use 75W-90 as opposed to the 85W-90 that is recommended in the owner's manual?

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1989 300CE

I believe Mobil1 carries an 85W-90 synthetic gear oil that I bought at a local auto store in the US here. Not sure since you are in Canada, but maybe make a call around. That is what I am using.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k

Can't seem to find 85W-90 anywhere. Called around to a few shops and they have told me to use 75W-90. I haven't called the dealer yet but I can imagine they would want a substantial amount more $$$.

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1989 300CE

Actually they are somewhat reasonable. You can always order online. Sometimes stores have it online and you can pick it up in-store so check out the website for local auto part stores.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k

You will be fine with the 75/90.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

That's what I figured. I'm going to put some synthetic Pennzoil or Castrol in.

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1989 300CE