I had a small leak 2 days ago. I used fixaflat because I was on my way to orlando. 0 to 60 the car rides great. At 70 to 80 the car vibrates nasty. 80 to 100 smooth again. First change I got I had them check the tires allign and balance car still vibrate at 70. Wtf! Typing on a phone sorry lol. Ty 4 the hlp.