How useful is rustproofing a car?

Question

I live in the north where we have 4-5 months of snow each year. Everyone talks about rustproofing and about different methods (and prices). Which method is the best? Is rustproofing even beneficial or just another money grabber?

Answer 1

Aftermarket rustproofing is a hit-or-miss proposition. It is often badly applied so that it actually traps moisture and causes faster rust than if there was no rustproofing. If applied correctly, it can help a little.

Most cars today extensively use galvanized sheet metal, which is excellent at resisting rust. However, welds can sometimes create rust points and the galvanization could be incorrectly applied at the steel mill. The bottom line is that, if I were to buy a car today, I would not get aftermarket rustproofing. I would inspect under the car regularly and get at any rust problems that I find. I have had very good results with Wurth's Rust Gard paint, although it's pretty pricey.

Answer 2

Depends on what product is used and how it's applied .The old "shooting oil " technique is not very good .Rustproofing fluid, Dinitrol of the correct type, or Waxoyl are two that I have used, and both seem to be well regarded by the Classic Car press. I find Dinitrol excellent to apply by spray, Waxoyl often needs to be thinned with white spirit before spraying. Without doubt to make the best possible job of rustproofing, the fluid should be applied using a compressor and appropriate spray guns. This enables the fluid to be blown into all nooks and crannies. I use a spray gun for the underside and under the wheel arches, and the same gun but with the nozzle replaced by a flexible probe about a metre long for treating the insides of all the closed areas (doors, sills etc). Check Halfords major tool stores - possibly tool hire shops for compressors, etc.

Answer 3

DO not EVEN WASTE YOUR MONEY!! tHE ridiculous THING IS THAT MOST CARS THAT ARE SO-CALLED rust proofed, WILL ACTUALLY BEGIN TO RUST where RUST PROOFING was INJECTED into the body!! Your fine car was RUST PROOFED at the factory, and special metals and paint were used in the process. Get your car checked ou, if you want, but do NOT get ANY MORE rust proofing. It nearly ALWAYS spells disaster!!! THese companies find a way to wriggle out of lawsuits on technicalities, even if your car DOES rust!! It is a BIGGER scam than muffler shops are!! DO they use ROAD SALT in OHIO??? If they do NOT, then don;t sweat it. You can run your car in water forever WITHOUT getting rust. It's the SALT that starts rust. THe best thing for your to do is to find a HIGHER tech car wash that cleans by high water pressure, and run it through frquently. They will POWER WASH the salt off your under carriage and PREVENT rust. YOUR car maker would like you to have your WELKDS re-coated with PLASITSOL coatings. GO to your MITSUBISHI dealership for thisservice. They have INSTRUSTIONS on how to apply this, and prevent making small pouches of rustproofing that actually HOLD the rust to the metal and begin rotting from the INSIDE out!!! GOOD LUCK!!

Answer 4

Consumer Reports Says:

Buying unnecessary extras.
Dealerships often try to sell you extras that boost their profit margin but are a waste of you money. They can include rustproofing, fabric protection, paint protectant, or VIN etching, in which the vehicle identification number is etched onto the windows to deter thieves. Don't accept those unnecessary services and fees. If you see those items on the bill of sale and you haven't agreed to them, simply cross them out and refuse to pay for them. Vehicle bodies are already coated to protect against rust. And recent CR reliability surveys show that rust is not a major problem with modern cars. You can treat upholstery and apply paint protectant yourself with good off-the-shelf products that cost only a few dollars. If you decide you want VIN etching, you can buy a kit to do it yourself for less than $25, instead of the $200 that some dealerships charge. Also think twice about an extended warranty. It can cost hundreds of dollars. But if you buy a model with good reliability or if you expect to have the vehicle only for five years or less, it often isn't worth the cost.

Answer 5

If you plan on owning a car for a few years and you live in an area where salt is used on the roads to clear snow/ice then rustproofing will definitely help protect the undercarriage of your car.

Answer 6

Rustproof a car is to protecting body. You pay 150 to spray protecting paint every year then you need not to pay the change of pipe under your car 80 dollars plus the change of parts of the body which had been rusted and broken.

Answer 7

If you live near the ocean or in an area where the roads are salted, then rustproofing is essential

Answer 8

Best Rust Proofing Method

Answer 9

Oil and tar coating are the old ways of doing it..,does not reach in all the crevices and has to be applied yearly to keep the warranty in force, it is a dealer markup..clear money maker, also needs yearly inspection by the dealer..get an electronic box available at cardealers and automotive retailers..it sends a current through the body annoying the rust creation process..works around the clock..better and cheaper..

Answer 10

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