My opinion on synthetic oil is it is not worth the price. The gains are not so clear cut and it leaks easier in any car. I will never use it even in my race car. There are some positive properties of the oil but in the end engine oil does not go bad per say. The additives break down, gasoline contaminates, carbon contaminates, harsh combustion gases make oil acidic and overheating can change the viscosity. The oil itself can be recycled and find it's way back into your engine someday. As an ASE Master Technician and engineer I say use Valvoline 10w30, 5w30 or 5w20 if that is what is called for.
My truck has 287,000 miles on it. It has only had Valvoline 10w30 put in since 1998 when I bought it. It does not leak oil or use it and the inside of the engine is clean and pretty.
synthetic ATF is a good idea since an automatic trans benefits from a thiner lubricant with uniform molecular structure. also synthetic atf can replace varied atf types and its thiner consistency can extend the trans service interval from usual 10,000 miles to 20 or 30k depending on a fluid that has not been contaminated. but for engine, unless you are running a jet engine, synthetic is overkill
I know you probably want a truck but I would by me an Accord. That way you will save money on gas making your trips back and forth. Hondas hold there value well so when you go to sell it or what not you will have more money. With the price range you have there you could buy a very nice Accord.
A supercharger (blower) is an air compressor that forces more air and, thus, more oxygen into the combustion chamber(s) of an internal combustion engine than achievable with ambient atmospheric pressure (natural aspiration).
The additional mass of oxygen-containing air that is forced into the engine improves on its volumetric efficiency which allows it to burn more fuel in a given cycle—which in turn makes it produce more power.