As more motorists consider holding onto used cars in New Jersey, proper maintenance may be needed to ensure that their vehicles last as long as owners desire.

Roughly half the car owners surveyed by Consumer Reports say they are putting off purchase plans for new cars, and the company says that warning signs that occur before major problems can point owners to preventive repair options.

Brake pads are designed to start squealing when they are worn down, but motorists may be put off by the $100 to $200 that replacing each one can cost. Replacing the pads, however, can help to protect the rotors, which can cost up to four times as much to repair.

Similarly, changing one’s oil can cost $20 to $50 depending on the make and model, but regular replacements limit sludge that could cause a $6,000 engine failure.

“Taking immediate action when you hear a noise or feel something wrong can save you thousands of dollars on avoidable repairs,” says David Champion, Consumer Reports Auto Test Center senior director.