I had a bit of a problem at the dealership today, trying to get the correct differential fluid for an '05 ML500.
The fluid should meet the MB Sheet 235.7 specification, and be of an 75/80W-90 viscosity. But the fluid they sell as "OEM" (Fuchs Titan Super Gear MC 80W-90) did not. It meets both API GL-4 and GL-5 (which I found rather interesting, since these seem not to be interchangeable in some applications), and various other manufacturer specifications like Scania and MAN's own spec. At $14 per litre, I told them to keep it.
Does anybody know if Mobil happens to carry a differential fluid meeting the MB Sheet 235.7 specification? My search hasn't lead me to find anything. Would it be alright to substitute something like Motorcraft Premium Rear Axle Lubricant 80W-90, and change it out at 40,000 km (25,000 miles) as opposed to the recommended 100,000 km (60,000 miles)? Thank you.
The fluid should meet the MB Sheet 235.7 specification, and be of an 75/80W-90 viscosity. But the fluid they sell as "OEM" (Fuchs Titan Super Gear MC 80W-90) did not. It meets both API GL-4 and GL-5 (which I found rather interesting, since these seem not to be interchangeable in some applications), and various other manufacturer specifications like Scania and MAN's own spec. At $14 per litre, I told them to keep it.
Does anybody know if Mobil happens to carry a differential fluid meeting the MB Sheet 235.7 specification? My search hasn't lead me to find anything. Would it be alright to substitute something like Motorcraft Premium Rear Axle Lubricant 80W-90, and change it out at 40,000 km (25,000 miles) as opposed to the recommended 100,000 km (60,000 miles)? Thank you.