Greetings all, I have a question about tires. I have 42k on the van and was told by my mechanic that I will need tires before the snow season. I have already changed the original tires 2 years ago so I am getting about 20k pre set. My 2nd set was Michelle Symmetry It seems very low on milage, my Jimmy use to get 40k on a set. Anyone know of a better tire? TIA, Dave-