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How Often Should You Change Your Oil?

5 min readBy the mechanics at Aaron's Auto Repair

The short answer

Most modern cars using synthetic oil need an oil change every 5,000–7,500 miles, not 3,000. In Texas heat and DFW stop-and-go traffic, follow your manual's severe-service interval — usually around 5,000 miles.

The 3,000-mile myth

The old rule of changing oil every 3,000 miles comes from a time of less refined oils and engines. Most modern vehicles running full synthetic oil can go 5,000 to 10,000 miles between changes.

Your owner's manual — or your car's oil-life monitor — is the best starting point.

Severe driving conditions

Manufacturers list a shorter 'severe service' schedule, and many DFW drivers qualify without realizing it:

  • Frequent short trips under 10 miles
  • Stop-and-go rush-hour traffic
  • Extreme heat above 90°F
  • Towing or carrying heavy loads
  • Dusty or construction-heavy roads

Synthetic vs. conventional

Synthetic oil resists breaking down under high heat, which matters in Texas summers. Many newer engines require it. Synthetic blends are a middle ground for older vehicles.

Always use the viscosity (like 0W-20 or 5W-30) your manufacturer specifies.

Signs your oil needs changing

Dark, gritty oil on the dipstick, a low oil level, a ticking engine noise, or an oil change reminder light all mean it's time.

Oil changes without the waiting room

Our mobile oil change service comes to your home or office anywhere around Irving and DFW. We bring the oil, filter, and drain equipment, and leave nothing behind but a clean driveway.

Need mobile oil change near you?

Aaron's Auto Repair brings mobile oil change to you anywhere within 50 miles of Irving, 24/7 — including Irving, Grand Prairie, Grapevine, Coppell.

Call 469-262-5048

Car trouble? We'll come to you.

Open 24/7 across Irving and every city within 50 miles.

Call Now — 469-262-5048