Ad Promises WD-40 Trick for Gas Tanks ... 70-Page Article Never Mentions It

Some corners of the internet would have you believe WD-40 can do anything.

Published June 2, 2021

Image Via ajay_suresh/Flickr

Readers may have seen an advertisement in recent years that showed a can of WD-40 spray being pointed at a car's gas tank.

WD-40's official product description says that the spray can "protect metal from rust and corrosion." The company sells a line of "lubricants, penetrating oils, cleaners, and rust removal products."

The ad in question read: "The One And Only WD40 Trick Everyone Should Know (Restwow)."

An online ad showed WD-40 being sprayed into a car's gas tank. We do not recommend putting anything in or outside of a car's tank except the gasoline or diesel specified by the manufacturer.

We clicked the ad. It led to a 70-page slideshow article that was filled with more ads. In fact, the pages were so full of ads that our laptop fans began spinning at max speed.

None of the 70 pages mentioned anything about spraying WD-40 at a vehicle's gas, diesel, or petrol tank.

What Does WD-40 Say?

The article mentioned nothing about the purported trick involving WD-40 and a gas tank, but we did find something of slight interest linked by the official company website.

At the end of a "Myths, Legends, and Fun Facts" page, the WD-40 website linked to a list of 2,000+ uses for the product. Two of the items mentioned included "lubricates door latch to gas cap" and "lubricates gas cap locks and levers."

However, a disclaimer pointed out that the list simply contained user submissions, and that it did "not constitute recommendations or suggestions" by the company.

The uses of WD-40 Multi-Use Product described on this website were provided to WD-40 Company by end-users of the product, and do not constitute recommendations or suggestions for use of WD-40 Multi-Use Product by WD-40 Company. These uses have not been tested by WD-40 Company.

Consumers should exercise common sense whenever using WD-40 Multi-Use Product. Always follow the instructions and take heed of any warnings on the WD-40 Multi-Use Product packaging.

Fun Facts About WD-40

While we're on the subject, we'd be foolish if we didn't mention some of the odd stories published by WD-40 on the company's official website.

For example, the page said that "a bus driver in Asia used WD-40 to remove a python, which had coiled itself around the undercarriage of his bus."

Another anecdote was about police officers using the product "to remove a naked burglar trapped in an air conditioning vent."

Actor Leslie Nielsen was even nicknamed Agent WD-40 in his role as Dick Steele in the 1996 film "Spy Hard."

We previously reported on another ad that claimed WD-40 could help repair cracked phone screens. Those ads and video thumbnails also led to content that never explained or even mentioned the supposed trick.

Snopes debunks a wide range of content, and online advertisements are no exception. Misleading ads often lead to obscure websites that host lengthy slideshow articles with lots of pages. It's called advertising "arbitrage." The advertiser's goal is to make more money on ads displayed on the slideshow's pages than it cost to show the initial ad that lured them to it. Feel free to submit ads to us, and be sure to include a screenshot of the ad and the link to where the ad leads.

Jordan Liles is a Senior Reporter who has been with Snopes since 2016.