Quote:
Originally Posted by livvie
Not worth it, especially on modern cars. It may be worth it if you live an area that uses a ton of salt and you don't wash during those periods. An improper application of undercoating can actually harm your car more than it helps because certain drainage areas are now blocked. Which means you are only trapping the moisture (water) for longer periods of time.
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In NYS we use a lot of salt. I generally have never washed my car at a car wash and certainly not during the winter. Since they use a lot of salt, how often would one want to wash their car?