Could driving a vehicle at higher RPMs be more efficient?


Marie and her buddy both love to drive manual transmission vehicles, but their driving styles couldn't be more different. Which one of them is getting better gas mileage?


Is gliding on ice in neutral ever a good idea?


Which is better when driving down icy hills: freewheeling in neutral, or driving slowly in a low gear? Tom and Ray are called in to settle this lifelong argument between Carol and her husband.


Today: The Case of the Missing Fuel Cap Flap


Kate tries to get to the bottom of the "check fuel cap" light that keeps appearing on her dash. Is she looking at a costly visit to the dealer?


Is switching oils a big deal?


Mary's been driving around with an accidental mixture of regular and synthetic oil in her car for 3,000 miles.  Mistake?


Can a dented fuel tank's gas gauge be reading correctly?


Joey wants to know if the fuel gauge on his daughter's '98 Honda Civic could be damaged after he accidentally dented her fuel tank -- while replacing her car's rear brake shoes!


How do I sell a car for parts?


Barbara gave the rear of her 1998 Plymouth Voyager Minivan a huge wedgie by backing into a cement post, but the engine is still in good shape. How should she go about selling this car for parts?


Today: The shop that messed up should pay up.


Lily's "check engine" light illuminated a few weeks after a Jiffy Lube oil change. Can you guess what her mechanic found when she took her 2008 Subaru Impreza in to the dealer?


Are we ever going to see front-wheel-drive pickups?


Rick wants to know where the alternatives to expensive four-wheel-drive pickups are hiding. Aren't they easier to handle on slippery roads?


Is it possible for turn signals to fail intermittently?


The blinkers on Terry's beat-up 1995 Volvo 850 have stopped working for her...but they still work for her husband! Is this a case of failed electronics or operator error?


Today: The Case of the Disappearing Fire


Driving down the road in my '89 Nissan pickup, I smelled smoke. I assumed it was outside and rolled up the driver's-side window and turned off the fan. Immediately, smoke came out of the heater vents. What's going on?


Is this husband's latest shifting method going to ruin the car?


My husband used to drive like an old man in his 1997 Camry but ever since he bought a 6-speed 2004 Acura TSX, he's been shifting like a race car driver. Has this car ruined him for life?


Today: Jay's new used truck is missing an air filter.


I bought a used truck from a Toyota dealer, drove it for 5,000 miles, and then discovered it was missing an air filter. Should I be worried?


Today: The Firebird and the Angry Little Brother


I learned that a "homemade octane booster" had been added to the gas tank of my friend's early-'80s Pontiac Firebird by an angry little brother.  The engine was running better than ever the next day.  Coincidence?


Today: What to Do When the Driver Loses Consciousness


My husband was driving our Yukon on the highway cruise control set on when he passed out. He was in the left-hand lane of four lanes so I reached over, turned off the ignition and steered to the left hand shoulder.


Today: Daphne's Prius Needs a New Battery


I just got word that my Prius with miles needs a new hybrid battery. I got the car new and it's been well-maintained but the battery has not given us the 150,000 or 180,000 miles that we had hoped we could get.