Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Fluids
Quick Lookups: Fluids — 2009 Acura MDX Service Manual : Fluids FLUID CAPACITIES Fluid Type Application Standard Metric Fluid Spec Note S/H Air Cond Compressor Oil 4.50 OZS. 0.13 L PAG ND-OIL 8 S Air Cond Refrigerant 1.40 LBS. 0.63 KG R-134a S Automatic Transmission Fluid Drain and Refill 3.00 QTS. 2.83 L HONDA Automatic Transmission Fluid ATF-Z1 DO NOT mix with other transmission fluids. Using transmission fluid other than HONDA Genuine ATF-Z1 may cause deterioration in transmission operation and durability, and could result in damage to the transmission. S Automatic Transmission Fluid Total Capacity 8.30 QTS. 7.85 L HONDA Automatic Transmission Fluid ATF-Z1 DO NOT mix with other transmission fluids. Using transmission fluid other than HONDA Genuine ATF-Z1 may cause deterioration in transmission operation and durability, and could result in damage to the transmission. S Brake Fluid N/A N/A Heavy Duty DOT 3 Brake Fluid Use DOT 4 as a temporary replacement. S Differential Gear Oil Drain and Refill,Rear 2.67 QTS. 2.52 L ACURA All-Wheel Drive Fluid (DPSF) ACURA parts stock has a new SH-AWD rear differential fluid available. It's ACURA All-Wheel Drive Fluid (DPSF), and it replaces ATF-Z1. (TSB: B10100E). S Differential Gear Oil Total Capacity,Rear 2.93 QTS. 2.77 L ACURA All-Wheel Drive Fluid (DPSF) ACURA parts stock has a new SH-AWD rear differential fluid available. It's ACURA All-Wheel Drive Fluid (DPSF), and it replaces ATF-Z1. (TSB: B10100E). S Engine Coolant Drain and Refill 1.93 GALS. 7.3 L HONDA Long Life Antifreeze/Coolant Type 2 Includes: the coolant in the reserve tank and that remaining in the engine. S Engine Coolant Total Capacity 2.43 GALS. 9.19 L HONDA Long Life Antifreeze/Coolant Type 2 S Engine Oil Drain and Refill,w/Filter 4.50 QTS. 4.25 L API - SAE 5W-20 Excluding the oil remaining in the engine. S Engine Oil Drain and Refill,w/o Filter 4.20 QTS. 3.97 L API - SAE 5W-20 Excluding the oil remaining in the engine. S Engine Oil Total Capacity 5.30 QTS. 5.01 L API - SAE 5W-20 S Fuel Tank 21.00 GALS. 79.49 L S Power Steering Fluid Overhaul 1.09 QTS. 1.03 L Genuine HONDA Power Steering Fluid DO NOT use Automatic Transmission Fluid. S Power Steering Fluid Reservoir Capacity 0.36 QTS. 0.34 L Genuine HONDA Power Steering Fluid DO NOT use Automatic Transmission Fluid. S Transfer Case Fluid Drain and Refill 0.45 QTS. 0.42 L Hypoid Gear Oil API - GL-4 or GL-5, SAE 90: Above 0Deg F (-18Deg C) or SAE 80W-90: Below 0Deg F (-18Deg C) S Transfer Case Fluid Overhaul 0.48 QTS. 0.45 L Hypoid Gear Oil API - GL-4 or GL-5, SAE 90: Above 0Deg F (-18Deg C) or SAE 80W-90: Below 0Deg F (-18Deg C) S Windshield Washer Fluid 4.20 QTS. 3.97 L Use commercially-available windshield washer fluid only. S
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.