Are Spare Tires Going the Way of the 8-Track?

Most new car buyers assume that when they drive off a dealer’s lot, there’s a spare tire onboard. But that may not always be the case, according to AAA. To meet new government fuel efficiency standards, some vehicle manufacturers are replacing spare tires with an emergency sealant and inflator kit or tires that if damaged can run reasonable distances without air.

To meet the new standards--a combined 29.7 mpg for the 2012 model year, increasing to 34.1 mpg by 2016, car makers are trying to reduce vehicle weight without compromising occupant safety. AAA reports that a spare tire, related tools and a jack can weigh more than 40 lb.

AAA offers these recommendations to consumers:

• Inspect the car and consult the owner's manual. If the vehicle has a spare, be sure it is properly inflated and stowed. If you cannot locate a spare tire, ensure that the vehicle has an alternate solution. Options include the run-flat tires that allow the car to be driven to a safe location or an emergency sealant and inflator kit.
• If you carry a sealant, check the date and replace it every 5 years or after use. Sealant can become less effective with age. 

Find AAA’s list of vehicles currently being sold without a spare tire here.