There is no reason to spend the extra money to put synthetic oil in a vehicle that didn't come from the factory with it. I buy whatever happens to be on sale when I'm ready to change it. I have owned dozens of vehicles over the years and have never had an oil related problem or failure. When my Tahoe DIC shows 10% of life remaining, I change the oil.
BTW, the 3000 mile oil change is a big myth. I routinely go 7500+ miles before changes. When I had my corvette and SRT8 Charger I changed the oil once a year. I'd drive them less than 3000 miles per year. My current daily driver, 2000 Chrysler 300M, has 169,000 miles without a hint of problems. I recently changed the oil in it after 9500 miles, wasn't even one drop low when I drained it. I put NAPA brand 10-30 in it. Heck that car still has the original headlight bulbs and battery after 8 years.
Stick with dino oil nad look for a sale. :thumbsup: