Has anyone else seen these commericals lately on TV? I've seen several of them: One with the Hendricks racing team, and a few other with some guy touting the oil, and then saying, "Don't make me show you the lab results"...or at least something like that. Basically, all the commericals say that Quaker State now has a lower coeficient of friction, and act like this is the best oil around. BUT, does an oil with low friction characteristics provide better protection? I figure two things: 1. Thin viscosities: For a given thirty-weight oil, it's viscosity is probably barely a 30 weight, but just enough to claim the number. 2. Friction modifiers: Probably loaded with them. I don't believe a thinner oil will actually protect your engine any more though...all I have to say is they better have a pretty good AW/EP package so when the engine pushes through the thin fluid film, and mixed-film and boundary lubrication conditions become present, your engine won't start wearing at a high rate. Feel free to shoot some holes in my argument ! ...And don't even get me started on the stupid Castrol commericals! ...And what's with Pennzoil commericals for every single type of oil imaginable??? Just saw one that showed a new oil specifically for "trucks, suv, and minivans". What's going on here? Arghhh...I need to go to bed! Goodnight!