Originally Posted by zr2s10
Undercoating in Western PA is a MUST, because PennDOT salts the heck out of the roads here.
I respectfully disagree, undercoating just makes it worse. It is pretty well known that spraying off (washing) the salt spray is what works best. Using undercoating is old school, like changing oil every 3000 miles regardless. Made sense in the 50s/60s/70s but we are currently way beyond the usefulness. Oil change and undercoat shops like to scare customers into generating business. There may be exceptions, but the WK2 is not one of them.
I've lived and owned many a high mileage vehicle in salt country for 45 years now and getting the nasty stuff washed off is by far the best practice and the only practice that works long term. Getting the vehicle into a garage and dried out helps a lot. The vehicle you were looking at may have never been washed.
You will always get what looks like surface rust on drivetrain and suspension components but that doesn't hurt anything.
I undercoated and rust protected the heck out of my 79 CJ using top shelf products and it still crumbled away.