2015 Chevrolet Malibu — Fluid Type Specs

Quick reference

Fluid	Type/Spec	Capacity
Engine oil (2.5L I4)	SAE 5W-20, GM dexos1 licensed (Gen 1 originally; Gen 2/Gen 3 acceptable/backward-compatible)	~5.0 qt (4.7 L) with filter; verify in owner's manual / OEM service info
Engine oil (2.0L Turbo I4, where equipped)	SAE 5W-30, GM dexos1 licensed	~5.5–6.0 qt (5.2–5.7 L) with filter; verify in owner's manual / OEM service info
Engine coolant	GM DEX-COOL OAT (orange), use 50/50 premix or concentrate + distilled water	~7.0–9.5 qt (6.6–9.0 L), varies by engine and heater options; verify in owner's manual / OEM service info
Automatic transmission fluid (6-speed FWD)	DEXRON-VI licensed ATF	Service fill ~4–6 qt (3.8–5.7 L); dry fill ~8.5–10.5 qt (8.0–9.9 L), varies by transmission (6T45/6T70); verify in owner's manual / OEM service info
Transfer case	Not applicable (FWD)	—
Front differential	Integrated in transaxle (uses ATF)	—
Rear differential	Not applicable (FWD)	—
Brake fluid	DOT 3 (meets FMVSS No. 116 DOT 3; SAE J1703/J1704)	Fill to MAX line; typical flush uses ~1 qt (0.95 L)
Power steering	Electric power steering (no hydraulic fluid)	—
Washer fluid	Windshield washer solvent suitable for season	~1.5–2.5 gal (5.7–9.5 L), verify per reservoir labeling
Diesel exhaust fluid (DEF)	Not applicable (gasoline engines)	—

Engine oil

• Spec: GM dexos1 licensed oil. The 2015 Malibu was originally specified for dexos1 Gen 1; newer dexos1 Gen 2/Gen 3 products are backward-compatible and recommended.
• Viscosity: 2.5L I4 typically 5W-20; 2.0L Turbo typically 5W-30. Always verify by RPO/engine code in the owner’s manual or OEM service information.
• Capacity: About 5.0 qt (2.5L) and about 5.5–6.0 qt (2.0T) with filter; verify.
• Interval: Follow the GM Oil Life Monitor (OLM). Under normal service this is often 5,000–7,500 miles, but can vary widely. Replace the oil filter at every oil change.
• Notes/pitfalls:
  • Use only dexos1-licensed oils; look for the official dexos trademark on the bottle. Using non-licensed oil can affect engine protection and warranty.
  • Turbocharged models benefit from high-quality dexos1 synthetic oils and timely changes due to higher thermal stress.
  • Always reset the OLM after service.

Engine coolant

• Type: GM DEX-COOL organic acid technology (OAT), orange. Use ACDelco DEX-COOL 50/50 premix or equivalent meeting GM’s DEX-COOL specification.
• Capacity: Approximately 7.0–9.5 qt depending on engine and HVAC content; verify in OEM service info.
• Mix: 50/50 with distilled water if using concentrate. In very cold climates, up to ~60% coolant may be used; do not exceed 70%.
• Interval: Typically 5 years/150,000 miles for DEX-COOL under normal conditions; inspect annually.
• Notes/pitfalls:
  • Do not mix DEX-COOL OAT with conventional green IAT or hybrid coolants; mixing can reduce service life and protection.
  • If system has been contaminated, perform a thorough flush and refill with fresh DEX-COOL.
  • Replace the pressure cap if it fails a pressure test—weak caps lead to boil-over and air intrusion.

Automatic transmission fluid (ATF)

• Transmission: 6-speed FWD transaxle (6T45 with 2.5L; 6T70 with 2.0T on many applications—verify by VIN/RPO).
• Fluid: DEXRON-VI licensed ATF only. Avoid “universal” ATFs that are not specifically licensed for DEXRON-VI.
• Capacity: Service fill typically 4–6 qt; dry refill roughly 8.5–10.5 qt depending on unit. Always verify by transmission model.
• Service interval: GM often lists ATF as “life-of-vehicle” under light duty, but a 50,000–60,000 mile drain-and-fill is prudent, especially for severe service (frequent short trips, high temps, towing, or urban stop-and-go).
• Notes/pitfalls:
  • Fluid level is temperature-dependent and is checked via a level plug. Use a scan tool or IR thermometer to verify ATF temperature per service procedure before setting level.
  • If shift quality issues exist, service with licensed DEXRON-VI first before pursuing mechanical repairs.

Transfer case

• Not applicable. The 2015 Malibu is front-wheel drive and has no transfer case.

Front and rear differentials

• The differential is integrated into the transaxle and shares the DEXRON-VI ATF. There is no separate gear oil fill.
• There is no rear differential on this FWD platform.

Brake fluid

• Spec: DOT 3 brake fluid meeting FMVSS No. 116 DOT 3 and SAE J1703/J1704.
• Capacity: Fill to the MAX line on the reservoir. A complete flush typically consumes about 1 quart (0.95 L).
• Interval: Inspect at least annually. Many shops recommend flushing every 2–3 years regardless of mileage due to moisture absorption.
• Notes/pitfalls:
  • Do not allow the reservoir to run dry during service; this can introduce air into the ABS modulator.
  • Avoid DOT 5 silicone fluids; they are not compatible. High-quality DOT 4 can be used only if explicitly allowed and will not harm rubber components, but DOT 3 is the factory spec.

Power steering

• The 2015 Malibu uses electric power steering (EPS) and has no serviceable hydraulic power steering fluid.

Washer fluid

• Type: Any reputable windshield washer solvent appropriate for climate. In freezing conditions, use winter blend rated for expected lows.
• Capacity: Roughly 1.5–2.5 gallons depending on reservoir; fill to the neck and check for leaks.
• Notes:
  • Do not dilute winter blends with plain water in cold climates—freezing can crack the reservoir or lines.

Diesel exhaust fluid (DEF)

• Not applicable. The 2015 Chevrolet Malibu is gasoline-powered and does not use DEF.

General tips

• Always verify capacities and exact specs by VIN in the owner’s manual or OEM service information. Running changes can affect requirements.
• Use new sealing washers/O-rings where specified, torque drain plugs to spec, and properly dispose of used fluids.

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