motor oil

Well said lol,
But they did have a change on the pick up tub if I remember right the tec's said the tub diameter was change to a bigger tub for some reason back about 95, Why I don't know, not a tec.:-D
If I have a 5 degree's F 10w30 or forty then I poor it on a hood the 5w15 would hit the ground first. wouldn't it.8)
Thanks for clearing that up, I need to think more before I type my mind.

Like I said, it's climate /temp related.lol