Paying Too Much for Gasoline

Getting a Good Deal on a Car

Readers offer more advice on how to get the best deal when purchasing a vehicle: Cash isn't always king. Plus, where to put your snow tires and maintaining a fleet of three cars.

• Discuss: Getting a deal

Keeping a Car Longer

Tips and advice on the best ways to keep a car, truck or SUV running reliably and efficiently for a long time on the smallest possible budget.

• Discuss: Keeping Your Car Longer?

Paying Cash for a New Car

Jonathan Welsh answers questions on whether paying cash gets you the best deal when buying a new car, using fuel-injector cleaners, finding an all-wheel drive minivan and keeping two cars.

Choosing the Right GPS Navigation System

This week, Jonathan Welsh answers questions on choosing between a built-in or portable GPS navigation system, finding a sedan for a very tall driver, the benefits of snow tires and the right vehicle for hunting.

Explaining the Gas Guzzler Tax

This week, Jonathan Welsh answers questions on the gas guzzler tax, when the next version of the Toyota Prius is coming and replacing an older Ford pickup and an Infiniti.

Nissan Sensor Recall

Nissan is recalling more than 200,000 vehicles to fix a sensor system that could affect the front air bag in the car's passenger side.

Ford Lets Parents Set Teen Limits

Ford will offer a programmable ignition key as a no-cost, standard option that restricts maximum speeds and offers additional safety alerts.

New Questions on Booster Seats

Comprehensive tests on booster seats found that some don't do enough to protect children in a crash and could even contribute to internal injuries.

Enterprise Plans Car-Sharing Push

Enterprise Rent-A-Car plans to launch its car-sharing unit, WeCar, at several partner businesses around the country.

Finding a Head-Up Display

This week, Jonathan Welsh answers questions on finding a vehicle that has a head-up display system, changing the differential fluid in an Acura, choosing a luxury sedan that offers good performance and the right tire pressure.

Replacing a Big Pickup

This week, Jonathan Welsh answers questions about finding the right vehicle to carry passengers and tow a light trailer, which hybrid SUV can tow 5,000 pounds, holding on to an aging Volvo wagon and replacing a timing belt.

The Right Vehicle to Haul Kayaks

This week, Jonathan Welsh answers questions about finding a fuel-efficient car that can haul kayaks and bicycles, replacing a big SUV, what is high mileage and when to turn off the engine when idling.

NHTSA Warns Ford Owners

Regulators are again urging owners of 12 million recalled Ford vehicles to bring them to dealerships to repair a cruise-control switch system that has been tied to engine fires.

Using the Manual Shift Option

This week, Jonathan Welsh answers questions about using the manual shift option in a Pontiac Vibe's automatic transmission, a good bet for a four-wheel drive vehicle that can handle the deep snow in the mountains, a manual transmission pickup and choosing a cute, reliable and economical car.

Five Great Asian Road Trips

The clogged streets and smoggy skies of Asia's cities make it hard to imagine any great drives in the region. But whether a four-day trip or an afternoon jaunt, your route is out there. Photos