This week on Ron Ananian, The Car Doctor, Ron takes a closer look at how modern vehicles have changed—and why maintaining them requires a different mindset than ever before. From oil changes and coolant service to battery health and proper diagnostics, Ron explains why today's vehicles are more dependent on preventive maintenance than the cars of the past. He also discusses the different approaches drivers take when leasing, owning long-term, or keeping an older vehicle on the road, and why understanding your maintenance strategy can save thousands of dollars over the life of a car.

Later, Ron talks with longtime listener Micah about automotive air conditioning systems, refrigerant loss, A/C performance, and why periodic service can help keep modern climate control systems operating at peak efficiency.

In the second half of the hour, Ron welcomes Quinn Trimmer of Trimmer Motorsports. Quinn shares his journey from quarter midgets to Sportsman Modified racing at Wall Stadium Speedway, discusses racing at speeds approaching 110 MPH on a one-third-mile oval, and explains the teamwork, discipline, and mechanical knowledge required to compete successfully in grassroots motorsports.

It's an hour of practical car care advice, real-world diagnostics, and a look inside the world of local stock car racing.

Car Advice Done Right.

• Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com

• Follow the wrench – Instagram @ronananian for shop life & behind-the-scenes

• Watch & learn – Auto repair tips & videos on our YouTube Channel

• Got a car question? Call the Car Doctor Hotline 24/7 – (855) 560-9900

• Join the conversation LIVE – Saturdays 2–4 PM Eastern