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Oldsmobile Aurora: Care & Maintenance
I changed the oil after the first 800 miles because there are significantly more metal bits deposited in the oil in the first few hundred miles on an engine. I use two quarts of Mobil 1 and the rest regular Mobil. I am trying to find the ACDelco Ultraguard filters (Pep Boys says they don't carry them anymore) but will use regular ACDelco Duraguards until I find them.
I plan on changing the tranny fluid after 50,000 miles despite the "lifetime" claim. Once the fluid gets burnt, it is too late... Besides, 50,000 miles is better than 30,000, so I'm still happy with the extended life. I'm not sure if I will wait 5 years on the coolant... Maybe...