Average repair spend per unit increased 3-5% in calendar-year 2018, primarily due to higher labor rates and part prices. Also, PM costs were up due to the shift to more expensive synthetic oil and higher replacement tire prices.
Synthetic Oils, Higher Labor Rates Increase Preventive Maintenance Costs
On average, PM costs have increased due to higher labor rates, expansion of models requiring synthetic motor oil, and more expensive cartridge oil filters. One offset is that longer lasting synthetics have extended oil-drain intervals.