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Tune-up services to help a vehicle run at peak performance and improve fuel economy. Tune-up requirements vary by vehicle, with older vehicles with non-electronic ignitions generally needing a tune-up every 10,000 to 15,000 kilometres or annually, while newer vehicles may go from 25,000 to 100,000 kilometres between major tune-ups. Symptoms may include frequent stalling, rough running when idling or accelerating, or difficulty starting.