Well since I had a bucket of oil leaking today, I found several oils and additives seeping through the sides of the plastic or so it seems. Anyhow I changed the oil at the mechanics shop, and placed that *-2004 lexus filter on the truck, and upon startup after pre-filling filter, the engine was KNOCKING and CLUNKING and made other sounds for about 20 seconds.... all the while the engine OIL light stayed on, not even flicking, then boom it went off. I then mixed several additives like Zinc and Moly and a little teflon and shook it all up and poured it in the engine with a base oil of a straight 40 weight. This is mixed with a 10W-30 oil. Took her on a short 6 mile trip with 4 stops. Seems to have more power like new, and starts quicker, I guess UOA's are gonna say something bad or good.