Here is what a clean surface looks like. The oil filter housing should be the same way.


The aluminum looked aged and dull, so I used 400, 800, 1000, and then 1500 grit wet sandpaper on it, followed by polish.



I used a light coat of Reinzosoil compound on both sides of the gasket. It's really tricky to get the housing back on without messing up the gasket, but it must be done. I put one of the bolts through the housing and the gasket to align it as I threaded the bolt. I made sure all the bolts were started a few threads before tightening them. The factory says to tighten them to 25nm, but good luck getting a torque wrench in there. I torqued one of them and then tried to match the rest.

CHOO CHOO! Funnel in place and ready for oil.


Put in the oil of your choice. I use Amsoil 15W40 Heavy Duty Diesel & Marine Synthetic Motor Oil with high phosphorus and zinc content. Don't forget to tighten up the oil pan drain plug and put in a new filter!

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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles