Which brand-name for premium gasoline should you use a car that is V6 and not performance V8?

There is no one definitive answer to this question, as the best brand of premium gasoline for a car with a V6 engine may vary depending on the specific make and model of the vehicle. However, some popular brands of premium gasoline that are commonly used in cars with V6 engines include Shell V-Power, Chevron Supreme, and Mobil Synergy Supreme+. It is always a good idea to consult your vehicle's owner's manual or consult with a qualified mechanic to determine the best type of gasoline for your specific car.