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Preventing Rust with Waxoyl

Preventing Rust with Waxoyl

The Car Doctor Podcast Feb 22, 2026 54 min
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About this episode

John Paul, the car doctor, discusses the importance of preventing rust on vehicles, especially in snowy regions where road treatments can be corrosive. Joined by Ken Lemoine, they delve into Wax Oil, a unique undercoating that effectively protects metal from moisture and rust. The conversation highlights the benefits of using Wax Oil, including its long-lasting properties compared to other products, and its growing adoption by municipalities to extend vehicle lifespans and reduce costs. Real-life examples illustrate the effectiveness of this method in preserving vehicles over time.

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Technical Too Afraid to Ask
Car

Porsche 959

"... to another edition of the car doctor program on 959 W-A-T-D. My name is John Paul, the car doctor her..."

The Porsche 959 is a very fast and fancy sports car from the late 1980s that was ahead of its time with special technology. It's rare and many car enthusiasts really want to own one.

Term

brine

"We're putting all kinds of brine on the roads. It used to be we put just sand on the road."

Brine is a salty liquid that cities spread on roads in winter to stop ice from forming. It helps keep the roads safer for driving.

Term

road salt

"Then we put a sand salt mix and now we put all kinds of different chemicals on the road that work great to keep the temperature of the melted snow and water so it doesn't freeze at 32."

Road salt is what cities put on the roads in winter to help melt snow and ice. While it makes driving safer, it can also cause rust on cars if they aren't protected.

Term

undercoating

"But I first want to talk to Ken about a product that he told me about a bunch of years ago called Wax Oil. And it's an undercoating body cavity spray."

Undercoating is a spray that protects the bottom of your car from rust and damage. It's especially useful in winter when roads are treated with salt and chemicals that can harm your car.

Term

rust

"salt and other ice melt products could kind of work their way into and stay there and cause rust. And if, you know, you live in the New England States..."

Rust is a type of damage that happens to metal when it gets wet and reacts with air. It can make cars weak and cause parts to break down.

Company

Wax Oil

"the product that you introduced me to Wax Oil is a way to try to stay on top of that, right?"

Wax Oil is a product you can put on your car to help keep it from getting rusty. It acts like a shield against water and salt.

Car

Volkswagen Bus

"I was underneath a perspective purchase of a Volkswagen bus. And this was about 2003 and the bus was about a 1966."

The Volkswagen Bus is a famous old van that many people loved in the 1960s. The 1966 model is one of the earlier versions, known for being roomy and having a cool design.

Term

undercoat job

"And he says, well, the first owner told me he had an undercoat job done on it when it was relatively new. And I said, who did it? This is unbelievable."

An undercoat job is a treatment done to the bottom of a car to help protect it from rust. It's like putting on a shield to keep the car safe from water and salt damage.

Car

Ford F150

"If I start an ad that said, you know, at a 2017 F-150, 90,000 miles, no rust, I mean, I'd be on that phone in a second."

The 2017 Ford F-150 is a tough truck that many people use for work or towing. It has different engine choices and is designed to handle a lot of different tasks.

Term

Cavity Wax

"So, the other side of it is that we use a product called Cavity Wax and we spray it in almost like an aerosol. It's aerated and we spray it at 90 PSI."

Cavity Wax is a special spray that helps protect the inside parts of a car from rust and damage. It's important because these areas can get wet and cause problems if not treated.

Car

Toyota Tacoma

"...if Toyota had done this to their tundra in Tacomas, they wouldn't have been replacing frames because the moisture gets into the inside of that frame rail."

The Toyota Tacoma is a smaller truck made by Toyota. It’s known for being tough and good for off-roading, but some models can have rust problems on the frame.

Car

Toyota Tundra

"...if Toyota had done this to their tundra in Tacomas, they wouldn't have been replacing frames because the moisture gets into the inside of that frame rail."

The Toyota Tundra is a big truck made by Toyota. Some models have had problems with rust on the frame, which can be fixed by using protective sprays.

Car

Chevrolet Silverado

"I've seen the late model GMs, the Silverados, etc. General Motors is putting on some sort of an industrial coating."

The Chevrolet Silverado is a big truck that many people use for work and hauling things. It's known for being strong and reliable.

Brand

General Motors

"I've seen the late model GMs, the Silverados, etc. General Motors is putting on some sort of an industrial coating."

General Motors is a big American company that makes cars and trucks. You might know their brands like Chevrolet and GMC.

Part

ball joints

"...So ball joints and boots on the racks, et cetera, will start to crack and rot. I've seen plow trucks that the complaint that the plow truck driver had..."

Ball joints are parts of a car's suspension that help the wheels move up and down while turning. They are important for keeping the car stable and steering properly.

Car

Toyota Camry

"We'll pick a Toyota Camry or something like that. You're spending a do-it-yourself kit for about $125 to $150."

The Toyota Camry is a well-known car that many people use for everyday driving. It's reliable and good on gas, which makes it a favorite for families.

Car

Toyota Highlander

"You can do all your cavities and undercoats. And that'll take you all the way up small SUVs like a Highlander."

The Toyota Highlander is a larger vehicle than the Camry, designed for families who need more room. It's an SUV, which means it can carry more people and luggage.

Car

Toyota RAV4

"or something like that or a RAV4. It really is."

The RAV4 is a type of SUV made by Toyota. It's a popular choice for people who need a reliable car that can handle different types of weather and roads.

Car

Toyota 4Runner

"Using the Toyota equivalent, you get up to a forerunner or something like that."

The Toyota 4Runner is a tough SUV that can handle rough terrains. It's great for people who like to go off-roading or need a vehicle that can take a beating.

Car

Ford F-250

"And an F-250 crew cab with a long bed on it, you could be looking at the better part of $300."

The Ford F-250 is a strong and durable truck that can carry heavy loads. It's commonly used for work and can also be great for outdoor activities.

Term

predatory engineering

"...the latest car manufacturing as predatory engineering in car making because the idea of the cars are eventually going to rust away..."

Predatory engineering means making things in a way that they won't last long, so you'll have to buy new ones sooner. In cars, this can mean that they rust or break down faster than they should.

Concept

Bay State Motor Festival

"So changing gears, the Bay State Motor Festival was the outgrowth of an eight-year restoration that I did on a vehicle that was built in Framingham..."

The Bay State Motor Festival is a car show where people display and celebrate classic cars. It's a place for car lovers to come together and see beautifully restored vehicles.

Concept

restoration

"...the Bay State Motor Festival was the outgrowth of an eight-year restoration that I did on a vehicle..."

Restoration means fixing up an old car to make it look and work like it did when it was new. This can include repairing the engine, body, and interior.

Term

GM dealership

"...the first GM dealership in the country, which is still in business today."

A GM dealership is a place where you can buy cars made by General Motors, like Chevrolet and Cadillac. They also help with car repairs and selling parts.

Term

transmission control valve

"The transmission control valve is affected and effective vehicles may fail."

The transmission control valve is a part of the car's transmission that helps control how the gears shift. If it doesn't work right, the car might have trouble changing gears.

Concept

10-speed automatic transmission

"Apparently the 10-speed automatic transmission, which was designed to replace the 7-speed wonky one that they had, isn't doing as well as they hoped."

A 10-speed automatic transmission is a system in a car that helps it change gears automatically. It has ten different settings to help the car run better and save fuel.

Car

GMC Yukon

"...dillac Escalade or Chevy Tahoe or Suburban or GMC Yukon or Yukon XL with this 10-speed, you'll be gettin..."

The GMC Yukon is a large SUV that can carry many passengers and is good for both everyday driving and outdoor adventures. It's similar to other big SUVs from the same company, making it a popular choice for families.

Car

Chevrolet Suburban

"...ou own a 2022 Cadillac Escalade or Chevy Tahoe or Suburban or GMC Yukon or Yukon XL with this 10-speed, you..."

The Chevy Suburban is a very large SUV that can fit a lot of people and their luggage. It's been around for a long time and is known for being a good choice for families or businesses that need a lot of space.

Car

Cadillac Escalade

"...s a software fix. And if you own a 2022 Cadillac Escalade or Chevy Tahoe or Suburban or GMC Yukon or Yukon ..."

The Cadillac Escalade is a big, fancy SUV that is very luxurious and has a lot of high-tech features. It's often seen as a status symbol and is popular among people who want a comfortable ride.

Car

Chevrolet Tahoe

"... And if you own a 2022 Cadillac Escalade or Chevy Tahoe or Suburban or GMC Yukon or Yukon XL with this 10..."

The Chevy Tahoe is a big SUV that can carry a lot of people and stuff. It's popular because it's strong and can handle different types of driving, making it a good choice for families or anyone needing extra space.

Car

Jeep Grand

"...cent recalls. Half a million ram trucks, 800,000 Jeep Grand Cherokees, 84,000 Hyundai's and Kia's, BMW's, Vol..."

The Jeep Grand Cherokee is a popular SUV that can handle tough roads and also feels nice inside. People talk about it a lot, especially when there are issues or recalls that affect many of these vehicles.

Car

Hyundai Kona

"Well, you're like, well, I own a Hyundai or Kia. Do I need to be worried? Well, the 2025, 26 Tucson hybrids, plug-in hybrids, Kona's, Ionix. And you're like, but how do I know if it's mine?"

The Hyundai Kona is a small SUV that looks good and is practical for everyday use. It's popular because it offers a lot of features for a reasonable price.

Car

Jeep Wagoneer

"...ive vehicles include model year 2024 to 2026 Jeep Wagoneer S, model year 2026 Cherokee, model year 2025, 202..."

The Jeep Wagoneer is a big SUV that has a classic look but comes with modern comforts and technology. It's known for being able to handle tough terrains while also being nice to drive.

Car

Nissan Altima

"A bunch of emails came in this morning. My Altima has 110,000 miles on it. I think I was supposed ..."

The Nissan Altima is a comfortable car that's not too big and gets good gas mileage. It's a popular choice for people who want a reliable car for everyday use.

Car

Toyota Corolla

"...d there around. But this person has a 225 Toyota Corolla, but they don't like the horn. The horn's wimpy ..."

The Toyota Corolla is a small car that is very reliable and doesn't use much gas. It's popular because it's affordable and easy to take care of, making it a great choice for many drivers.

20 cars featured

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