I've heard all the excitement about the GC 0w-30 on lt1 and such. well, i 'm currently using castrol syntec 10w-30 and it's time for an oil change. my truck is a daily driver rain, show, or shine and has 97k miles. truck runs like a peach and has no problems (knock on wood). since the 4.3 is generally the same as a 350 minus 2 cylinders, would the GC 0w-30 be a good worker on my truck as well? thanx