Fine. Okay, you are right - it really doesn't work. The earth is flat, and the moon landing was a hoax.

How the heck should I know why car manufacturers don't put it on every car? Maybe because by the time rust becomes a problem - they could care less about the vehicle. Maybe because rust is less of a problem with modern steel. Maybe because dealerships like selling undercoatings. Maybe because they did some cost/benefit analysis and found that consumers wouldn't pay for it.

TimR

Quote:
Originally posted by Kerensky97/ NOXCAPE:
If this were true then how come EVERY manufacturer doesn't put a chunk of Zinc on the chassis.

They could solve the rust problem for the simple cost of a few dollars per vehicle.

It's like all miracle products, if they could solve such a major problem why does rust persist?