My C-230 (2.3 litre 4 cylinder) Kompressor takes 7.5 quarts on the button. Mobil 1, 0w40 year round. What i can see inside the valve covers at 140,000 miles is extremely clean. Now the transmission--the 722.6--is a unique fluid that is somewhat proprietary. When i did my filter at 100,000 miles i was able to source 3 cases of the German-sold Shell version of the fluid. Used my 7 or 8 liters, kept a few and sold 2 cases to cover my cost of my case, the filter, gasket, connector. It took nearly a month to find the fluid, but Tommy would have been proud of the deal i put together!!
By the way, the Dodge Sprinter uses the same tranny and fluid--Mopar version is the same price for the juice, but the filter/gasket/electrical connector (prone to an o-ring failure at 7-10 years that can allow fluid to migrate to the control module--$10 preventive cure "while you're in there") and several other things i needed were half the money for the exact same part.
earl
By the way, the Dodge Sprinter uses the same tranny and fluid--Mopar version is the same price for the juice, but the filter/gasket/electrical connector (prone to an o-ring failure at 7-10 years that can allow fluid to migrate to the control module--$10 preventive cure "while you're in there") and several other things i needed were half the money for the exact same part.
earl



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