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MotorBiscuit · July 22, 2026

America’s Filthiest Car Owners Exposed - And It’s Worse Than You Think

America’s Filthiest Car Owners Exposed - And It’s Worse Than You Think

For some drivers, cleaning the car is a weekly ritual. For others, the floorboards double as a fast-food graveyard. A new survey from AmericanMuscle has ranked which car owners keep their rides spotless and which ones are basically driving a petri dish. Dodge and BMW owners came out on top, with over 60% of them washing or detailing their cars at least every two weeks.

On the flip side, Subaru, Mazda, and Tesla drivers finished dead last. The Tesla findings are especially ironic: most owners claim their cabins are clean, yet nearly three-quarters rarely wash the exterior. And 10% of all drivers admitted they never wash their cars at all.

That neglect isn’t just embarrassing, it’s a health risk. A study from Aston University found that the average car interior harbors more bacteria than a public restroom. Researchers discovered strains of E. coli and Staph on driver’s seats and gear shifters. com, shows the average steering wheel contains 700 bacteria per square inch, nine times the amount on a typical toilet seat.

So if you’ve been skipping the vacuum, your immune system is paying the price.

But there’s a financial angle too. A dirty car loses value fast. Dealers and private buyers judge a vehicle’s mechanical health by its cosmetic condition. Professional detailing experts say a deep clean and paint correction can return 150% to 300% on investment when you sell. Keeping the interior tidy and the clear coat protected can add hundreds, even thousands, to your trade-in offer.

Whether you’re carving canyons in a Mazda or cruising in a Dodge, it’s time to grab a microfiber towel. At Boca Auto Care, we make it easy to keep your ride clean, healthy, and valuable.

Source: MotorBiscuit

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