Answer extracted from the Car Dealership Guy Podcast — listen to the full episode below.
Should dealerships follow OEM-recommended maintenance intervals or adopt more frequent service schedules?
There is genuine disagreement among dealership leaders on this question. While Tully Williams advocated for strictly adhering to OEM-recommended maintenance intervals—typically one-year intervals set by factory engineers—three other panelists pushed for more aggressive schedules, including oil changes every six months, to better align with how customers actually use their vehicles.
The Factory Standard Argument
Tully Williams took a firm position: manufacturers engineer their maintenance intervals based on extensive testing and real-world data, and dealerships should respect that expertise rather than second-guess it. OEM engineers deliberately set intervals to balance durability, cost, and customer value, and deviating from those standards risks undermining the integrity of the vehicle warranty and the automaker's research.
This perspective treats the factory standard as a baseline of trust—if a manufacturer says a vehicle's oil is good for 12 months, overriding that decision without explicit customer agreement could expose the dealership to liability and damage relationships with the OEM supply chain.
The Advanced Service Schedule Perspective
The three other panelists took a different view: customers do not always drive their vehicles in the conditions OEMs assume when they design maintenance schedules. Stop-and-go city driving, towing, or extreme temperatures can degrade fluid faster than a manufacturer's one-year projection.
Offering more frequent oil changes and component inspections—such as every six months—becomes a customer retention strategy, not just preventive maintenance. As discussed at length in this episode, dealerships with strong service retention operate at 70–80 percent customer retention rates, far above the industry average of under 30 percent.
More frequent service visits create more touchpoints to catch emerging problems early, build customer confidence in the dealership's care, and reduce the risk of catastrophic failures that drive customers away forever.
The Practical Middle Ground
The core tension is not whether OEM intervals are *wrong*—they are legitimate baseline minimums. The question is whether dealerships can ethically and profitably offer *more* frequent service without dismissing the manufacturer's engineering. The answer hinges on transparency and customer choice: present OEM intervals as the factory minimum, explain the wear factors specific to the customer's driving conditions, and offer optional advanced schedules.
A dealership that makes it easier for customers to say yes to more frequent service—and easier to book, pay for, and complete that service—will retain more customers and revenue, a point reinforced throughout the conversation on dealership accessibility.
The panel also explored how mobile service and AI-driven appointment scheduling are changing the equation: if you can deliver more frequent maintenance to a customer's home or workplace, convenience becomes a competitive advantage that standard OEM intervals alone cannot provide.
See also
How has OEM data sharing with parts suppliers impacted automotive parts availability in dealerships?
The panel discovered a significant supply chain problem: OEMs are not supplying their part suppliers with visibility into sales data, forcing suppliers to anticipate demand without concrete market signals. This lack of transparency creates inventory shortages and delays parts availability for service operations.
Should dealerships prioritize gaining more customer demand or eliminating customer friction in service operations?
Dave Rogers and Tully Williams both chose 20 percent more demand, with Tully noting he would turn increased demand into no friction anyway. Richard Lupo emphasized the importance of reducing friction to retain customers, arguing that ease of doing business is the key differentiator.
What percentage of routine vehicle service will migrate to mobile service outside dealership locations?
Ed Roberts predicted that within five years, 60 percent of service visits will be mobile. Richard Lupo estimates 50 percent of routine maintenance like oil changes will move to mobile service models, fundamentally reshaping how dealerships deliver maintenance.