Oil Change Myths vs Reality – Why a Proper Oil Change at PROFIX Matters

We get it — there’s a lot of confusion about oil changes. Some shops push every 3,000 miles no matter what, while others say you can go 10,000+ miles. So what’s actually right for your vehicle?

At PROFIX Auto Repair in Norman, OK, we believe in being honest and thorough. We’re not a quick lube. Every oil change includes a full 27-point inspection because we want to catch small problems before they become expensive repairs.

Our Shop Oil Change Policy

• Full Synthetic Oil: Every 5,000 miles or 6 months, whichever comes first
• Synthetic Blend or Conventional Oil: Every 3,000 miles or 6 months, whichever comes first

These intervals are based on real-world Oklahoma driving conditions — extreme heat, dusty roads, and frequent short trips around Norman and OKC.

What You Actually Get During an Oil Change at PROFIX

We take the time to do it right:

• 27-Point Inspection covering brakes, fluids, belts, hoses, battery, lights, tires, and more
• Borescope inspection of brake pads and rotors so we can show you exactly how much life is left
• Brake fluid testing for moisture and contamination
• Coolant testing for proper protection and acidity
• Physical inspection of engine and cabin air filters
• Full undercarriage check for leaks, suspension issues, and more

If we find any issues during the inspection, we take clear photos or videos and explain them to you honestly — no sales pressure, just straight answers.

Real Example from Our Shop

We recently caught a customer’s vehicle with oil so severely degraded causing a check engine light.  They were told they needed a new timing chain.  We performed a through inspection and used the correct full synthetic oil, we were able to fix the issue without a costly timing chain job.

This is the PROFIX difference — we protect your vehicle.