I like Packard's advice with the floor jack. Measure the frame to ground, then jack up the car and remove the wheel. Then loosen both the drain plug and fill plug (drain plug will require a new aluminum crush washer - same as engine oil washer). Slowly lower the floor jack to the original body height, then reach under and remove the drain plug.
The car needs to be level for proper fill height.
100K interval sounds pretty good to me, unless you were to have teenaged drivers :)
Klaus
--
Common sense trumps a PhD
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