10 Dumb Car Myths That Refuse to Die

by AutoExpert   |  23 April, 2025

Share :

Car culture is packed with weird superstitions and outdated advice that somehow keep circulating despite having zero basis in reality. When drivers were asked about the dumbest automotive myths they've encountered, the responses ranged from mildly silly to completely absurd. Here's a rundown of the automotive tall tales that refuse to die:

The 100 MPG Conspiracy

Nearly everyone's heard this one: some brilliant engineer created a carburetor delivering incredible fuel economy, only to be "silenced" by Big Oil and the auto industry. Somehow this mythical technology never surfaces, despite thousands of engineers who'd love to revolutionize transportation.

Car Myths

GMC's "Thicker Steel"

The persistent belief that GMC trucks use thicker, stronger steel than their Chevrolet counterparts. Same factory, same specs, different badges—but try telling that to die-hard GMC defenders.

Car Myths

Barefoot Driving Ban

"It's illegal to drive barefoot!" No, it's not—never has been in any U.S. state. This myth is so widespread that police departments regularly have to issue clarifications.

Car Myths

Cold Engine Myths

Two stubborn myths refuse to die: "You must warm up your car before driving" and "Don't reverse when the engine is cold." Modern engines actually warm up faster while driving gently, and they're perfectly capable of moving backward at startup without self-destructing.

Car Myths

The Electric Car Falsehoods

Anti-EV myths abound: "They're less green because of power plants" and "Battery manufacturing makes them worse for the environment." Both claims have been thoroughly debunked. Even with coal-generated electricity, EVs produce fewer lifetime emissions than gas vehicles.

Car Myths

The +2 Insurance Discount

Sports car owners love claiming those tiny back seats in 2+2 coupes exist to lower insurance rates. Insurance companies aren't fooled—those seats exist so buyers can tell their spouses, "See? It's practically a family car!"

Car Myths

Manual Transmission Safety

The belief that stick shifts prevent distracted driving. Anyone who's driven a manual regularly knows shifting becomes automatic muscle memory, leaving plenty of attention for smartphone distractions, coffee drinking, or other dangerous behaviors.

Car Myths

Trade-In Tactics

"Don't mention your trade-in until after negotiating the new car price." According to actual car salespeople, this "clever" strategy just wastes everyone's time without improving the deal.

Car Myths

No Seatbelt "Safety"

Less common now but still lurking: the idea that not wearing a seatbelt is safer because you could be "trapped" after a crash. Physics and decades of crash statistics strongly disagree.

Car Myths

Brand Loyalty at the Pump

The fear that switching between gas brands will somehow damage an engine. While there were minor differences between gas formulations decades ago, modern standardized fuel makes this concern completely outdated.

Car Myths

Car myths seem to persist through generations despite ready access to accurate information. Perhaps there's something comforting about automotive superstitions, or maybe drivers just like having secret "knowledge" to share. Either way, these myths continue their stubborn existence in garages and online forums everywhere.

Recomended:

Everyone Says Pop-Up Headlights Were Banned, but That Is Not What Actually Happened - Photo
Others
Everyone Says Pop-Up Headlights Were Banned, but That Is Not What Actually Happened

Few automotive features can make a parked car look as alive as pop-up headlights. Turn the switch and two neat sections of bodywork rise from the hood, pause with theatrical precision and reveal the l

AutoExpert
This Talking Datsun Hid a Tiny Six-Track Record Player Beneath the Dashboard - Photo
Others
This Talking Datsun Hid a Tiny Six-Track Record Player Beneath the Dashboard

A new car speaking to its driver no longer feels remarkable. Navigation systems issue directions, safety assistants complain about lane markings and voice controls wait patiently for somebody to remem

AutoExpert
Honda Built Navigation Before GPS Using Helium, Transparent Maps and a Glowing Green Dot - Photo
Others
Honda Built Navigation Before GPS Using Helium, Transparent Maps and a Glowing Green Dot

There was a time when getting lost required some commitment. A driver would unfold a road map across the steering wheel, locate two towns that appeared to be printed directly on top of one another, th

AutoExpert
Your Front Brakes Do Most of the Work, So Why Did the Rear Pads Wear Out First? - Photo
Others
Your Front Brakes Do Most of the Work, So Why Did the Rear Pads Wear Out First?

The usual explanation sounds perfectly logical. When a car slows down, its weight moves toward the front. The front tires carry more load, so the front brakes provide more of the stopping force. That

AutoExpert
Rubber Is Naturally Pale, So Why Did the Automotive World Make Every Tire Black? - Photo
Others
Rubber Is Naturally Pale, So Why Did the Automotive World Make Every Tire Black?

A bright red car, a metallic blue car and a taxi painted the color of a highlighter will normally leave the factory with exactly the same footwear. Black tires. The color seems so inevitable

AutoExpert
A Fatal Hand-Crank Accident Helped Change the Way Every Car Starts - Photo
Others
A Fatal Hand-Crank Accident Helped Change the Way Every Car Starts

Starting a modern car requires so little effort that the action barely registers. Turn a key, press a button or let the vehicle recognize that its driver has climbed aboard. A second later, the engine

AutoExpert
You Installed the Correct Battery, but Your Car May Still Think the Old One Is There - Photo
Others
You Installed the Correct Battery, but Your Car May Still Think the Old One Is There

Changing a car battery used to be one of the cleaner bargains in home mechanics.Remove two terminals, undo the clamp, lift out the old battery and fit the new one. The clock might need resetting a

AutoExpert
Highway Rumble Strips Are Designed to Sound Awful, but Making Them Quieter Could Save Lives Too - Photo
Others
Highway Rumble Strips Are Designed to Sound Awful, but Making Them Quieter Could Save Lives Too

One tire wanders across the painted line and the previously quiet cabin erupts with a harsh mechanical growl. The steering wheel trembles, the seat vibrates and, for half a second, it feels as if some

AutoExpert
People Once Wanted Car Radios Banned Because Listening While Driving Seemed Far Too Dangerous - Photo
Others
People Once Wanted Car Radios Banned Because Listening While Driving Seemed Far Too Dangerous

A dashboard without a radio now looks unfinished. Even the most basic car is expected to provide music, news and something to fill the silence when traffic has stopped moving but the clock has not.

AutoExpert
The Seatbelt That Chased You Across the Door Was America’s Cheaper Alternative to an Airbag - Photo
Others
The Seatbelt That Chased You Across the Door Was America’s Cheaper Alternative to an Airbag

Open the door of certain 1980s or early 1990s cars and a small buckle begins travelling along the roofline. Sit down, close the door and the shoulder belt glides toward the B-pillar, hopefully passi

AutoExpert