Question Asked: I am experiencing a rough ride on new set of tires
August 10, 2011, 06:31 PM
I replaced with same tires. Was very smooth before replacing. I made tire dealer replace entire set, still very rough. Had them trued ,still rough. When car is off the ground and spun up very smooth. sounds like a suspension issue?How can i prove to the dealer(have extended warranty and service contract)
Question Answered: 750li performances
August 10, 2011, 06:38 PM
I had the same problem. was bad gas. Fill up with premium gas and add an octane booster from your local auto parts house. a good quality booster is about $10.