Expert Auto Repair You Can Trust

Professional automotive services in San An​tonio with over 20 years of experie​nce. From routine maintenance to complex repairs, we keep your vehicle running smoothly.

Certified Technicians

ASE-certified mechanics with extensive training and experience

Fast & Reliable Service 

Quick turnaround times without compromising quality

Competitive Pricing

Fair, transparent pricing with no hidden fees

Modern Equipment

State-of-the-art diagnostic and repair equipment

Warranty Protection

All repairs backed by comprehensive warranty coverage

Customer Satisfaction

Dedicated to exceeding customer expectations

Frequently Asked Questions

Have a question? Read our FAQ and schedule your service today

How Often Should I Change My Oil?

General Guidelines:

  • Conventional oil: Every 3,000-5,000 miles or 3-6 months
  • Synthetic blend: Every 5,000-6,000 miles or 6 months
  • Full synthetic oil: Every 7,500-10,000 miles or 6-12 months

Most modern vehicles can safely go 5,000-7,500 miles between oil changes.

Change more frequently if you experience:

  • Short trips (less than 5 miles)
  • Stop-and-go city driving
  • Extreme temperatures
  • Dusty conditions

Pro tip: Always check your owner's manual for the manufacturer's recommended interval specific to your vehicle.

When should I replace my brakes?

Warning Signs:

  • Squealing or grinding noises when braking
  • Brake pedal feels soft or spongy
  • Vehicle pulls to one side when braking
  • Vibration in the brake pedal
  • Brake warning light illuminated on dashboard

General Guidelines:

  • Brake pads: Typically every 30,000-70,000 miles
  • Brake rotors: Usually every 50,000-70,000 miles
  • Brake fluid: Flush/replace every 2-3 years

Pro tip: Have your brakes inspected during regular maintenance visits to catch issues early.

What should I do if my check engine light comes on?

Immediate Steps:

  • Check if other warning lights are on
  • Pay attention to any performance changes (rough idling, power loss, etc.)
  • Check your gas cap is tight (a loose cap can trigger the light)

Next Actions:

  • For a steady light: Schedule a diagnostic scan with R&S Auto Mechanics
  • For a flashing light: Reduce speed and have your vehicle towed to avoid damage

Common Causes:

  • Loose or faulty gas cap
  • Oxygen sensor failure
  • Catalytic converter issues
  • Mass airflow sensor problems
  • Spark plug or ignition coil failures

Pro tip: Don't ignore this warning light—addressing issues early can prevent more expensive repairs later.

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