Truth is we already make good quaility synthetic oil in the US. Every commerical jet and fighter jet in the world use synthetic oil. Amsoil
an American company has been making a API Rated 100% synthetic motor oil with a 25,000 mile or once a year oil change since 1972.
As far as cost it is cheaper than conventional oil. For 25,000 miles you would have 8 oil changes with a 5 qt system thats 40 qts and 8 filters.
With Amsoil 5 qts 1 filter. You come out way ahead so shipping no shipping the price is cheap.