Van has 238k. Swapped the oil pan due to a stripped drain plug and old gasket. Looked for the o-rings for the oil cooler assembly, but could not find anything. They didn’t look too bad, so I went for it. Filled up the oil, let it sit for an hour, didn’t see any leaks. As soon as I started it, it dumped pretty much all the oil out of the oil cooler. Got it shut off immediately, but now I’m sure I’m going to need either a new cooler or those gaskets. Any advice?

 

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