Latest post of the previous page:Ya know,
They say oil is like religion or politics. Everyone thinks there's is the best.
I've read so many articles about oil weights and their effects on pressure and bypassing the oil cooler. Some of the authors were a hell of a lot smarter than I. On a weight and balance scale, the vast majority of them suggested no higher than 10-30 weight if your engine isn't on it's last legs. My findings a couple of years ago when I dropped to 10-30 supported their theories. I ran down the freeway for 10 miles at 70mph in 100* temps then exited the freeway quickly. I pulled over and shot my oil sump w/a laser temp gauge. It was 225*. I also have never experienced any flickering oil lights on my bugs or bus when the engines were hot.
I'm rambling but I'm satisfied with the 10-30 valvoline racing oil with the proper levels of zinc/phosphate for our flat tappet cams. I/we are all probably over thinking this oil thing anyway. Someone also said once "the most important thing is to change your oil frequently". So true.