Lexmex

Reason I ask about the blotting of the oil on the paper towel is that when I first went to check my girlfriend's Expedition for its oil level she had a similar issue to yours but hadn't changed out the oil in about 5K or so by her count (but the oil was not even showing up on the stick (had to be at least more than 2 liters down as the engine flush added to it wouldn't even show up on the stick). Those 5.4 L V8 engines love to eat oil and it failed the blot test. I ran some Lubro Moly Engine Flush through it just prior to the oil change and when I drained that oil it was disgusting and made my eyes literally burn being near it. A lot of impurities I could tell and a few clumps. With the Expedition, I've come to expect it, but not in the RX300. I'd be curious to see what shows up with your oil change.