Tig, i see 25-30lb at a hot idle [1000rpm ?] as ok, as long as when you go above idle, it shoots up.

it was also mentioned about a 200k van using 0-30 ?
my "bus" with the 3.3 engine [175k] gets 15-40, but i haven't gotten around to put a pressure gauge on it.
i'm considering going to 10-30 on it, but i just did an oil change about 500 miles ago, and since i don't drive as much any more, i have been changing at 2500 miles.
a big WIX 51515 filter also fits, so i have been using those for years. however, with WIX now being made overseas [?], after i use up my stash of 51515's, i don't know what brand of filter i will use.