\" \" Late-model cars don't require the same maintenance as older-model cars. That's because the term tuneup specifically refers to maintenance that modern cars generally don't require anymore. Traditional tuneups on older cars help keep them in good shape, and enable maximum gas mileage. But the engines in many newer-model cars don't even use these components any longer, and today's engine parts are designed to last much longer than those in years past. You should opt to have routine maintenance completed about every 30,000 miles or as recommended by your car's owner's manual.