I recently retired my RX 300 after 200K and bought an RX 350. I know it reads premium fuel in the literature but if I useregular fuel, what sort of issues might I have? Pinging, engine damage? A friend has a new Corvette and runs regular fine and it is supposed to use premium. He said around town and normal driving hasn't caused any problems. I will put a lot of miles on the RX 350 each day driving all over the state of Georgia. (300+ Highway) It adds up paying the difference between premium and regular.
Thanks!
Ace...