Thirty years ago, in the days of buck-a-gallon gas, it's hard to imagine people were giving a second thought to the price at the pump or their driving habits. But today, gas prices are higher than ever and the fluctuations are tremendous. It seems like even the smallest hiccup in the oil and gas sector means immediate rises in the price at the pump. These sudden price jumps quickly cramp your fuel budget, and this is forcing drivers to take drastic tactics to increase their fuel economy and save money on gas. While, in theory, these fuel-saving methods have some merit, in practice, many of these tips are ineffective, unsafe or both. Here are some common fuel-saving myths that will cost you more than you'll ever save at the gas station. (For related reading, also check out Top 5 Money-Saving Tips For Your Car.)

Tutorial: Budgeting Basics

1. Airflow Gadgets - $90+ Wasted
The Theory: High-tech devices designed to increase your engine's airflow will improve fuel efficiency.

The Facts: It sounds plausible, but the results don't back up the impressive claims. Consumer Reports tested several of the devices, such as Fuel Genie ($89.95, plus shipping), that purport to increase fuel economy by accelerating airflow to the engine. The tests found no noticeable gains in MPGs, despite claims of 50% fuel savings. While it's true that drastically increasing the airflow to an engine is a common way to increase horsepower (i.e. forced induction through turbo and superchargers), doing so will actually increase fuel consumption and increase wear on the engine, not to mention that this proven technology costs significantly more than its gimmicky competition.

2. Fuel-Additives - $5 to $250 Wasted (per treatment)
The Theory: The gas we buy can be improved by adding scientifically formulated chemicals that will increase fuel efficiency and, sometimes, horsepower.

The Facts: Clearly, some drivers believe the answer to their fuel woes lies in a magic elixir, because there are numerous fuel treatments that claim to increase MPGs, despite no scientific proof or explanation of how less fuel is burned. According to CNN.com, one common tactic used by shady fuel-additive makers is to tout the product's approval by the Environmental Protection Agency (EPA). This suggests that a trusted consumer watchdog has approved the product's claims, but in fact, the EPA had only deemed that the product does not increase a vehicle's harmful emissions. The truth is, if there were an additive that made fuel burn more efficiently, oil companies would be racing to market their new gas at the pumps and gain a bigger market share.

3. Premium Fuel - $4 Wasted per Tank (on average)
The Theory: Premium gas provides increased performance and better gas mileage.

The Facts: This is true … if you own a premium automobile that requires high-octane gas, but these cars make up the minority of daily drivers. So if you're in the majority – drooling over Ferraris from the seat of your Corolla – your car's engine control unit (ECU) is programmed to run on the octane levels present in regular gas. Increasing the octane – either through buying premium gas or adding bottles of octane-boost – can actually cause the engine to be less efficient, as the car's combustion timing becomes altered and efficiency is lost. But the most noticeable loss will be the extra 20 cents per gallon you'll be wasting to buy high-octane gas. A safe bet is that if you can afford a vehicle that requires only premium fuel, you likely aren't concerned with gas prices or tracking mileage.

IN PICTURES: Top 6 Mindless Money Wasters

4. Over-Inflated Tires - $200 Wasted (minimum)
The Theory: Rounder tires roll easier, creating less work for the engine and therefore, better MPG.

The Facts: Again, this tip is true … to a point. Over inflated tires will have less friction with the road, which lessens the effort the engine exerts to keep the car rolling, providing slight gas savings. However, overinflated tires will wear out quickly and irregularly, causing you to need early replacements at a cost of about $50 to $100 per tire. What's worse is that the decreased contact with the road increases stopping distances and limits handling capabilities. This all adds up to a large risk in costly accidents and injuries. Even if you are lucky and avoid a collision, it would take a lifetime (which could very well be short if you're riding on bald and bulbous tires) for your fuel savings to negate the cost of four new tires. According to Edmunds.com's testing, the fuel consumption difference between driving with over-inflated tires and tires at the recommended pressure is negligible. Sometimes, despite what GM's recent track record suggests, carmakers do know what they're doing and the recommended settings and levels do provide the best results.

5. Roll Down Windows Rather than Using Air Conditioning - Comfort Wasted
The Theory: Operating the AC to cool the vehicle uses fuel, so it's more efficient to cool off by driving with the windows down.

The Facts: While it's true that some fuel is used to operate the AC compressor, as much or more fuel is lost when the windows are down. Rolling down the windows increases the drag on the car, which causes the car to work harder to maintain its speed. For even better mileage, you can improve your AC's efficiency by using the re-circulation setting on the car's HVAC system instead of forcing the AC to cool the hot air from outside. Heeding this tip will increase your mileage, as well as your comfort.

The Bottom Line
The act of saving gas borders on sport for some thrifty drivers, but extreme measures don't always equal extreme savings. And while some gas-saving methods will offer a few cents per tank in savings, the safety concerns of these methods outweigh any benefits to your bank balance. It's a boring realization, but the real road to fuel savings lies in common-sense approaches like avoiding unnecessary driving and idling, driving the speed limit and performing regular vehicle maintenance. You won't amaze anyone with this practical approach, but it's better than shocking people with useless purchases, a battered car and a wind-swept hairdo. (For additional reading, also see How Long Until Your Hybrid Pays Off?)

Related Articles
  1. Budgeting

    Trunk Club Review: Is It Worth It?

    Take a close look at one of the best-known online clothing services in the country, and determine whether it's a good fit for your style and budget.
  2. Budgeting

    HelloFresh Review: Is It Worth It?

    Discover one of the world's most successful meal subscription services, and learn more about how the service operates and what it costs.
  3. Fundamental Analysis

    5 Things to Know About the Volkswagen Scandal in 2016

    Find out what your need to know about Volkswagen and the impact the scandal will have on the company, its shareholders and U.S VW car owners.
  4. Budgeting

    Beer of the Month Subscription Review: Is It Worth It?

    Learn how you can get access to some of the best craft beers produced in the world, delivered right to your front door every month.
  5. Budgeting

    Just the Right Book Review: Is It Worth It?

    Take an in-depth look at Just the Right Book, a subscription service that delivers personalized book selections based on your reading history and preferences.
  6. Savings

    What Your Credit Score Means for Your Love Life

    Wondering if your significant other wants to commit and is reliable? The Fed might have the answer.
  7. Entrepreneurship

    ‘Happy Birthday to You’ Belongs to Everyone Now

    A class action lawsuit over the copyright to the iconic American song “Happy Birthday to You” ends by placing the ubiquitous ditty in the public domain.
  8. Investing News

    Who Does Cheap Oil Benefit? See This Stock (DG)

    Cheap oil won't benefit most companies, but this retailer might buck that trend.
  9. Budgeting

    The Honest Company Bundles Review: Are They Worth It?

    Learn more about The Honest Company and its bundle subscription services, which deliver discounted diapers, formula and other baby products to your doorstep.
  10. Investing

    3 Healthy Financial Habits for 2016

    ”Winning” investors don't just set it and forget it. They consistently take steps to adapt their investment plan in the face of changing markets.
RELATED FAQS
  1. How does a cost-of-living adjustment (COLA) affect my salary?

    Some companies build salary adjustments into their compensation structures to offset the effects of inflation on their employees. ... Read Full Answer >>
  2. Where can you buy NetSpend reload packs?

    You can only purchase NetSpend reload packs at Giant Eagle, Albertsons, Roundy's and Pathmark supermarkets. NetSpend cards ... Read Full Answer >>
  3. Can your car insurance company check your driving record?

    While your auto insurance company cannot pull your full motor vehicle report, or MVR, it does pull a record summary that ... Read Full Answer >>
  4. What does marginal utility tell us about consumer choice?

    In microeconomics, utility represents a way to relate the amount of goods consumed to the amount of happiness or satisfaction ... Read Full Answer >>
  5. What are some common ways product differentiation is achieved?

    There are many ways to achieve product differentiation, some more common than others. Horizontal Differentiation Horizontal ... Read Full Answer >>
  6. How does the trust maker transfer funds into a revocable trust?

    Once a revocable trust is created, a trust maker transfers funds or property into the trust by including them in a list with ... Read Full Answer >>
Hot Definitions
  1. Short Selling

    Short selling is the sale of a security that is not owned by the seller, or that the seller has borrowed. Short selling is ...
  2. Harry Potter Stock Index

    A collection of stocks from companies related to the "Harry Potter" series franchise. Created by StockPickr, this index seeks ...
  3. Liquidation Margin

    Liquidation margin refers to the value of all of the equity positions in a margin account. If an investor or trader holds ...
  4. Black Swan

    An event or occurrence that deviates beyond what is normally expected of a situation and that would be extremely difficult ...
  5. Inverted Yield Curve

    An interest rate environment in which long-term debt instruments have a lower yield than short-term debt instruments of the ...
  6. Socially Responsible Investment - SRI

    An investment that is considered socially responsible because of the nature of the business the company conducts. Common ...
Trading Center