First of all the purpose of this thread is more a vent and input of thoughts than anything. My 2003 Cadillac Escalade EXT has seen its 6th winter here in NY. Obviously its exposed to the salt and other chemicals of the road and we all know how corrosive to vehicles they are. I can not believe that the engineers at the automakers do not take some simple steps to help prevent some of this corrosion from occuring. I know they count on it rotting your vehicle away so you turn around and buy a new one. Well if thats the answer in a nutshell then I guess all my venting here will and does fall on deaf ears. After only 2 winters (45k miles)my power steering line rotted out right where it is bent and then welded to the pump itself. Had to buy a whole new pump because the line was not replaceable. Transmission lines rotted out (65k miles) right underneath the starter because all of the windshield water is drained right onto the starter then lands on the lines. My starter looks like a cylinder of rust but so far has not been an issue.. YET. After 6 winters of driving I just had to replace 2 brake lines that rotted out right where they are attached to the frame with a clip and are bent. Now on a $50k+ vehicle(in 03) you would think that maybe stainless lines would be a nice stock upgrade.... NOT. I continually washed the vehicle the first 3-4 years in the winter and that has not seemed to make a difference. I did an oil spray before the first winter that I cannot say did or did not help prevent corrosion. Hey GM how about painting the exposed backside of the sheet metal under the vehicle. Or at least coating it with something.. My new 11' Silverado was plain steel on the floorboards except for a little red overspray. So I guess its left up to the consumer to "undercoat" the vehicle if they live in such an area. Well I would like some input on how well undercoating works to the point where you would not be able to tell that someone drives a vehicle in the winter. I saw [MENTION=52759]TimTom64b[/MENTION] the other day and remembered he had undercoated his truck as he went by covered in road grime. Then was kinda happy to see him pull into the car wash to clean it all off. TT I would be curious to know how well your undercoating you had used worked for you in the spring as far as keeping the cancer away. I dont want to drive the phantom in the winter but there may come a time that I might have to and Im dreading the day it first has to see a snowy road. Been sitting in the same spot since the first week in November. Im waiting for dry roads to give it a ride around the block.