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Rustproofing: All oiled up

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Khatir Soltani
The most common type of rustproofing treatment is an annual oil-based deal. On a yearly basis, this is the least expensive alternative. Prices typically range between $60 and $110. On occasion, supplemental rebates can further lower the cost to as little as $40.

So, what does an oil treatment consist of?

The first time you show up at the garage with your car, holes will be drilled into the body (doors, pillars, etc.) to permit access to hidden joints and seams for a proper and complete application. The oil coats and protects the sensitive parts, protecting against moisture and other rust-inducing agents.


Because the oil is fluid it tends to run and, therefore, eventually can be washed away or contaminated. On the topic of “running,” make sure you clear out the door drains on occasion as the oil can accumulate, clog and cause more harm than good.

And because it runs, regular applications are required. In most cases, these rustproofing treatments will work best only if they are repeated every year. You may not need to always get a complete reapplication of the product. Some shops do offer partial applications, however, it is important to consult the warranty documents to make sure you're doing what is required.

As you may or may not know, some of these oils are not compatible with the rubber seals that insulate your car from the outdoors. It is best to look into this before selecting where to go for this particular rustproofing option.

There exists some semi-solid, oil-derived (vegetable oil in some cases) treatments that combine many of the advantages of oil and grease-based products. The cost savings are negligible as one job costs in the vicinity of $100. Once again, application is the key as the semi-solid product does not run and spread like regular oil. At the moment, this type of protection does not present any specific advantages over oil or grease.

For recommendations as to where people should go for rustproofing, you may contact the Automobile Protection Association as they have specific tried, tested and true recommendations. You can contact them by visiting their website at (www.apa.ca) or by calling them at 514-272-5555.

Khatir Soltani
Khatir Soltani
Automotive expert
  • Over 6 years experience as a car reviewer
  • Over 50 test drives in the last year
  • Involved in discussions with virtually every auto manufacturer in Canada