Originally Posted by Captain Cooter
I highly recommend Mobil 1 synthetic. You can afford a new truck, don't be cheap on maintenance. I'm a mechanic and I'm telling you, be preventative and pay a little extra $$$ for the good stuff and you won't be kicking yourself down the road for being cheap when you're faced with a large repair bill.
Advance Auto has specials- $29.99 for 5qts Mobil-1 synthetic and Mobil-1 filter. Buy 3 kits and its only $45/change with a filter left over.