Here here. 99 Ford Expedition with about 155,000 miles on her. Changed the oil last month with some 0W-20 and a new oil filter. Oil pressure idiot light gauge did not change at all, and she runs smoothly. 5.4L V8 in the Eddie Bauer. Mix of driving, from short trips to between cities. And there are no conventional 0W-20s, they are all good and all at least mostly synthetic, IIRC. Thoughts on this oil choice?