The news that Suzuki, Mazda, and Yamaha have admitted to cheating emissions testing almost comes as no surprise in today’s fraught automotive industry. The three companies join fellow Japanese manufacturers Nissan and Subaru, whose chicanery forced the Japanese Ministry of Land, Infrastructure, and Transport to institute a blanket policy requiring that every automaker review their internal testing protocols.

As reported by the Nikkei Asian Review, the newest additions to the list of companies caught either falsifying test data or using samples tested under incorrect driving conditions must come as a breath of fresh air for other international brands following the Dieselgate scandal currently rocking Volkswagen AG’s executive cadre. While many industry analysts and consumers alike have long suspected that most brands may fudge the rules, the trend seems to be even more widespread than initially expected.

RELATED: PORSCHE EXECUTIVES FACE HOME RAIDS AFTER DIESELGATE

via 3d-car-shows.com

Suzuki’s internal investigation alone discovered that just shy of half the vehicles tested since 2012 raised red flags in testing methods: 6,401 were incorrectly measured out of 12,819 total, or 49.93 percent. Mazda’s and Yamaha’s reviews, meanwhile, stood at levels that suggested a more reasonable sense of plausible deniability — 3.84 percent since 2014 and 2.1 percent since 2016, respectively.

Following the discovery that improper procedures were used in emissions and quality control testing, Subaru stated that none of the cars covered by the investigation ever shipped to the United States. The same report that outed Subaru and Nissan also pointed a finger at Yamaha-manufactured motorcycles.

via leantomatoes.com

But no one would have guessed that Suzuki—who has not sold vehicles in the United States since 2012—would have found impropriety committed at such a high rate. At a press conference on Thursday, Suzuki’s President Toshihiro Suzuki apologized for the scandal, saying “It is a significant fact that such a large number of our products were improperly processed, and we take it seriously. We failed to educate our staff in an in-depth and extensive manner."

Just how far this scandal will play out remains to be seen. As Yamaha and Mazda rest easy knowing that Suzuki’s figures alone will draw the most ire from stockholders, consumers, and regulators alike, all three companies suffered significant stock declines following the revelation. No doubt, Suzuki’s executives hope they won’t soon face the extensive scrutiny that has led to VAG’s enormous fines and criminal charges.

NEXT: DAIMLER RECALLS THOUSANDS OF VEHICLES BY ORDER OF GERMAN GOVERNMENT