ok ive read on here lots of posts about the better kinds of oils,but heres my question how about (quaker state peak performance sae 10w 40)is it any good or what do you guys think, before i pour it in my motor my truck has 91000 mile on it,thanks :icon16:

Any name brand oil of the right viscosity will be fine as long as you change it and the filter regularly!

most of the oil you buy is made by the same manufacturer, just a different label.