Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

7 of 9
BACKNEXT
Super gasoline - 15% markup
Super gasoline - 15% markup
If you're filling up your tank with super gasoline, chances are your wallet will soon be running on empty.

The special stuff costs up to 20-40 cents more per gallon than regular gasoline, even though it doesn't do anything to improve the performance of most cars. With regular gas averaging about $2.72 a gallon, that translates to a 15% premium.

"It's like feeding your dog more expensive food and expecting it to jump higher," says Gabriel Shenhar, senior auto test engineer at Consumer Reports.

When Shenhar tests cars, he doesn't put much stock in the manufacturer's "recommendations for optimal performance" -- instead, he uses the fuel grade that's explicitly required. You can find the requirement printed on the inside flap of your car's gas tank.

The bottom line: Read your owner's manual. While some high-performance or luxury cars may need super gas, your average Celica doesn't.

NEXT: Hotel mini-bars - 1,300% markup

Last updated February 02 2010: 11:12 AM ET
Email | Print | Share  |  RSS
 
google my aol my msn my yahoo! netvibes
Paste this link into your favorite RSS desktop reader
See all CNNMoney.com RSS FEEDS (close)
More Galleries
The Obama economy in 10 charts President Obama came to office in January 2009 in the midst of the Great Recession. Much has turned around since then, but he's been criticized for a slow recovery. More
Best Jobs in America CNNMoney/PayScale's top 100 careers with big growth, great pay and satisfying work. More
Top-paying jobs Anesthesiologists take home a median $335,000 in salary and bonus annually. What other great careers from CNNMoney and PayScale.com's list of Best Jobs in America offer hefty paychecks? More

Special Offer