I have 207,000 on my '98 Deville and need to have 2 tires put on tomarrow. I do not beleive we have ever had new belts on this car, should I have them all changed while it is in the shop and is there any thing I should be concerned about. At 105,000 sevice they changed the platinum plugs and wires. ( just ckecked the bill and no mention of belts.). I had leaking heaters hoses this sumer and they were replaced. Car starts and runs flawlessly. I plan to drive this till spring, ( give this to my grandson) buy another '98 or '99 with low mileage. I brouse E-Bay daily but not quite ready to buy, hoping to buy one in Florida stay a few weeks and drive it home. We change the oil every 3 to 4 thousand miles, and put a quart in inbetween, but has not been back to the dealer since the 100,000 mile service. Also water pump was replaced this summer.