Trucking Safety Myths Debunked
Dangerous myths persist in trucking because they are passed from driver to driver without verification. From the myth that Georgia overdrive saves fuel to the belief that experienced drivers do not need HOS rules, these misconceptions have contributed to fatal crashes. Here are the facts.
Ahmad Qazi
Founder & CEO, O Trucking LLC
Fact-Checked by O Trucking Dispatch Team
5+ years promoting evidence-based safety practices in trucking
Written by Ahmad Qazi, founder of O Trucking LLC, drawing on 9+ years dispatching for owner-operators. Learn more about us.
O TruckingTrucking Safety Myths Debunked (2026)
Key Takeaways
- Georgia overdrive (coasting in neutral) saves no fuel on any modern injected diesel and is prohibited under FMCSR 392.6.
- Drafting behind another truck removes the 6-7 seconds of following distance you need to stop safely at highway speed.
- An empty or bobtail truck has a longer braking distance than a properly loaded one because the brakes are sized for full weight.
- After 18 hours awake your impairment matches a 0.05% BAC; experience does not make you resistant to fatigue.
- Caffeine masks drowsiness for a few hours but never replaces sleep — the only fix for fatigue is rest.
Myth 1: Georgia Overdrive Saves Fuel
FALSE and DANGEROUS
Modern fuel-injected engines use zero fuel during in-gear deceleration. The fuel injectors shut off when the throttle is released. In neutral, the engine must idle to stay running, consuming 0.8-1.5 gallons per hour. Coasting in neutral is illegal (FMCSR 392.6), removes engine braking, and saves literally nothing on fuel. See our Georgia overdrive definition.
Myth 2: Drafting Behind Trucks Saves Fuel Safely
DANGEROUS
Drafting means following another truck at 50-100 feet to reduce aerodynamic drag. At 60 mph, a loaded truck needs 525+ feet to stop. Following at 100 feet gives you less than 1 second of reaction time. One sudden brake check from the lead truck means a catastrophic rear-end collision. The 2-3% fuel savings cannot offset the risk of a multi-million-dollar accident.
Myth 3: A Light Load Is Safer Than a Heavy Load
PARTIALLY FALSE
While a lighter truck has less kinetic energy in a crash, it actually has worse braking performance. The brake system is designed for the full 80,000 lbs. Without sufficient weight on the rear axles, braking distance increases, rear wheels lock more easily, and the truck is more susceptible to crosswinds. A bobtail truck has 40%+ longer braking distance than a loaded truck.
Myth 4: Experienced Drivers Can Handle Less Sleep
FALSE
Sleep deprivation impairs all humans equally regardless of driving experience. After 18 hours awake, cognitive impairment is equivalent to a blood alcohol level of 0.05%. After 24 hours, it equals 0.10% (above the legal limit). Experience does not overcome biology. HOS rules exist because of sleep science, not driving skill.
Myth 5: Big Trucks Always Win in a Crash
DANGEROUSLY MISLEADING
While the truck occupant may survive a crash more often than the car occupant, truck drivers are killed and seriously injured in crashes every year. Rollovers, head-on collisions with other trucks, bridge impacts, and cargo intrusions are all potentially fatal to the truck driver. Additionally, an at-fault crash involving fatalities can result in criminal charges, permanent CDL loss, and lifelong consequences.
Myth 6: You Can Drive Through Fatigue with Coffee
FALSE
Caffeine provides temporary alertness but does not replace sleep. It takes 20-30 minutes to take effect and wears off after 3-5 hours. It does not improve impaired decision-making or reaction time caused by sleep deprivation. The only cure for fatigue is sleep. If you are drowsy, pull over and rest — no caffeine substitute is safe.
Facts Save Lives; Myths Kill
Myth vs. Fact: Quick Reference
Use this table to gut-check any “tip” you hear at the fuel island. If the claim is in the left column, the right column is what the physics and the regulations actually say.
| The Myth | The Fact |
|---|---|
| Coasting in neutral (Georgia overdrive) saves fuel | Injectors already shut off during in-gear deceleration; neutral forces idle fuel burn and is illegal under FMCSR 392.6 |
| Drafting behind a truck is a safe way to save fuel | A loaded truck needs 500+ feet to stop at 60 mph; drafting leaves under a second of reaction time |
| A light or empty truck is safer to drive | Bobtail and lightly loaded trucks have longer braking distances and are more prone to wheel lock and crosswinds |
| Experienced drivers can run on less sleep | Fatigue impairs everyone equally; 18 hours awake equals roughly a 0.05% BAC |
| Coffee can push you through drowsiness | Caffeine only masks fatigue for a few hours; sleep is the only real fix |
Pro Tip
The Bottom Line
Good driving is based on physics, science, and regulations — not myths passed down at truck stops. Every dangerous myth has a safe, evidence-based alternative. For more on safe practices, see our dangerous trucking practices guide, engine braking explained, and mountain driving guide, and our OTR hours-of-service guide.
Trucking Safety Myths FAQ
Common questions about trucking safety myths and facts
Does coasting in neutral really save fuel?
No. Modern diesel engines use virtually zero fuel when the throttle is released and the truck is decelerating in gear. The fuel injectors shut off during deceleration. Coasting in neutral actually wastes fuel because the engine must idle (consuming 0.8-1.5 gallons per hour) to stay running. Georgia overdrive saves zero fuel on any truck built after the 1990s.
Is a lighter truck safer than a loaded truck?
Not necessarily. A lighter truck (bobtail or lightly loaded) actually has worse braking performance because the brake system is designed for the full weight of a loaded truck. Without sufficient weight on the rear axles, braking distance increases and the rear wheels are more likely to lock up. Empty trucks are also more susceptible to crosswinds.
Is drafting behind another truck safe?
No. Drafting (following very closely behind another truck to reduce wind resistance) is extremely dangerous. At highway speeds, you need 6-7 seconds of following distance to stop safely. Drafting at 1-2 seconds of following distance means you cannot stop in time if the lead truck brakes suddenly. The minimal fuel savings are not worth the risk of a rear-end collision.
Do experienced drivers not need HOS rules?
No. Fatigue affects all humans regardless of experience. Studies show that experienced drivers are no more resistant to the effects of sleep deprivation than new drivers. HOS rules are based on sleep science, not driving skill. An experienced driver who has been awake 18+ hours is as impaired as a legally drunk driver.
Can coffee or an energy drink replace sleep behind the wheel?
No. Caffeine masks drowsiness for a few hours but does not restore alertness, judgment, or reaction time lost to sleep deprivation. It takes 20-30 minutes to kick in and wears off in 3-5 hours, often followed by a sharper crash. The only real fix for fatigue is sleep. If you feel drowsy, the safe and legal move is to pull over and rest.
Does engine braking or a Jake brake damage your transmission?
No. Engine braking (including the compression-release 'Jake' brake) is a designed-in feature on modern diesels and does not harm the engine or transmission when used correctly. It actually saves wear on your service brakes and reduces the risk of brake fade on long downgrades. The main caveat is that many towns restrict its noise, so watch for posted signs.
Is it true that bigger trucks always come out fine in a crash?
No. A truck's mass can protect the cab in some collisions, but truck drivers are killed and seriously injured every year in rollovers, head-on truck-to-truck crashes, bridge strikes, and cargo intrusions. An at-fault fatal crash can also bring criminal charges and permanent CDL loss, so size is never a substitute for safe driving.
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