2015 Acura RDX Wiper Sizes, Bulb Sizes & Tire Size

Last reviewed September 30, 2026

The short answer

The 2015 Acura RDX takes 26" driver and 16" passenger wiper blades (rear 14"), and rides on 235/60R18 tires as standard (Base, Technology Package).

Wiper blade sizes

Driver side 26" Shop on Amazon
Passenger side 16" Shop on Amazon
Rear 14" Shop on Amazon

Tire size

Base, Technology Package (standard) 235/60R18 102V · 33 psi See tires at Amazon

The size on the placard inside the driver's door jamb is the one your car left the factory with. Match that, not this table, if they differ; a previous owner may have changed wheels.

Bulb sizes

High beam HB3 Shop on Amazon
Fog light H11 Shop on Amazon
Front turn signal 7444NA Shop on Amazon
Rear turn signal 7440 Shop on Amazon
Brake light 7443 Shop on Amazon
Tail light 7443 Shop on Amazon
Reverse light 921 Shop on Amazon
License plate 168 Shop on Amazon

Wheel specs and lug torque

Bolt pattern 5x114.3 mm (5x4.5")
Lug nut torque 80 ft-lbs (108 Nm)
Factory wheel sizes 18x7.5

Key fob, battery and sensors

Key fob battery CR2032 Shop on Amazon

Dimensions, weight and fuel

Fuel Gasoline
Octane 87 minimum, 91 recommended
Fuel tank 16 gal (61 L)

Worth knowing about the 2015 RDX

  • Wipers. No blade maker source confirmed the front arm type, and Rain-X lists a Rock Lock 3 arm for the rear blade.
  • Bulbs. Low beams take a D2S xenon capsule on some models and an H11 halogen bulb on others.
  • Tire chains. The manual permits chains or cables, on the drive wheels only, fitted to the standard tire size. Chains for this size on Amazon →
  • Tires. Chains go on the front tires only, and because clearance is limited the manual recommends SCC Radial Chain TC2212MM cables, and the spare is a T165/90R17 compact.
  • Torque. Tighten lug nuts to 80 ft-lbs in a star pattern with a torque wrench, and re-check after the first 50 miles. This figure is from the owner's manual; an impact gun will overshoot it.
  • Octane. The manual requires 87 octane and recommends 91 for full performance. Regular will not harm the engine; premium is a choice, not a requirement.
  • Fuel. The manual recommends 91 octane premium and warns that fuel below 87 octane can damage the engine.