Radiator Went at 132,000.
#1 Alternator went at 135,000.
#2 Alternator went at 137,000 (replaced under warranty)
Tape player died at around 140,000, bought a aftermarket CD player and put it in myself.
Exhaust system from catalytic converter back rusted out at 159,000. (It was the original exhaust from the factory)
I bought this Buick right before my Monte Carlo died (perfect timing huh?) because it fit needs. I needed a highway cruiser with a huge trunk, lots of people space and very reliable, and this car takes the cake. I've gone on 8 hour drives from MA to MD and back with six people in it and no one complained of discomfort.
It also gets great mileage for a big car I average like 22 M.P.G, but on long trips I got it up to 28 M.P.G. TWICE! Not bad for a two ton beast.
This car is great! Lots of power, great brakes and the dynaride suspension makes highway cruising feel like your sitting on a cloud. It has never once not started right up on the first try, looks brand new and has done everything I asked it to and more. I would recommend a Roadmaster to anyone wanting A highway cruiser.
I only have one gripe; the door for the glove box is really low in the dash so if a tall person sits in the front passenger seat they almost always smack there knees getting in.
I don't own the car anymore, but I still get to drive it once in a while. I gave it to my dad when I decided to go back to school and no longer do much highway commuting. He still has it with almost 170,000 mile on it and no problems since the exhaust, just maintenance items.
He has made some changes to it since he got it, he loves big cars, but he likes great mileage in the city to, one thing the Roadmaster doesn't do well. So in went underdrive crank pulleys, 160 degree thermostat, a high flow catalytic converter, flowmaster muffler, throttlebody spacer, and a K&N air filter. Not to mention a full tune-up. He averages about 18 in the city, not bad for it since I was getting like 13. We drove down to Florida from Massachusetts over the summer and got 32 M.P.G. with three people in the car a trunk full of supplies, and the A/C on full blast doing 70 M.P.H all the way down, that's incredible!
Truly an amazing car!
G.M. should bring back the rear wheel drive b-body cars like this, cause this car is awesome!