🧪Fluid Capacities
Infiniti Q45 Fluid Capacities
All fluid capacities for your Infiniti Q45: engine oil, coolant, transmission fluid, brake fluid, power steering, and more.
Quick Answer
The Infiniti Q45 requires multiple fluids maintained at specific levels. Engine oil, coolant, transmission fluid, brake fluid, and power steering fluid all have different capacities depending on your engine and model year.
2001-2006
2001-2006Engine OilVaries by engine — check owner's manual (typically 4-8+ quarts)
Coolant (total system)6.0 - 10.0 quarts
Transmission Fluid3.0 - 4.0 quarts (drain & fill)
Brake FluidDOT 3 or DOT 4 — ~1 quart for full flush
Power Steering FluidATF or manufacturer-specific — ~1 quart
Windshield Washer~1 gallon
Notes
- →Never mix different types of coolant — flush completely when changing brands
- →Transmission fluid should be checked with the engine running and at operating temperature
- →Brake fluid absorbs moisture over time — replace every 2-3 years regardless of mileage
1995-2000
1995-2000Engine OilVaries by engine — check owner's manual (typically 4-8+ quarts)
Coolant (total system)6.0 - 10.0 quarts
Transmission Fluid3.0 - 4.0 quarts (drain & fill)
Brake FluidDOT 3 or DOT 4 — ~1 quart for full flush
Power Steering FluidATF or manufacturer-specific — ~1 quart
Windshield Washer~1 gallon
Notes
- →Never mix different types of coolant — flush completely when changing brands
- →Transmission fluid should be checked with the engine running and at operating temperature
- →Brake fluid absorbs moisture over time — replace every 2-3 years regardless of mileage
1990-1994
1990-1994Engine OilVaries by engine — check owner's manual (typically 4-8+ quarts)
Coolant (total system)6.0 - 10.0 quarts
Transmission Fluid3.0 - 4.0 quarts (drain & fill)
Brake FluidDOT 3 or DOT 4 — ~1 quart for full flush
Power Steering FluidATF or manufacturer-specific — ~1 quart
Windshield Washer~1 gallon
Notes
- →Never mix different types of coolant — flush completely when changing brands
- →Transmission fluid should be checked with the engine running and at operating temperature
- →Brake fluid absorbs moisture over time — replace every 2-3 years regardless of mileage
Frequently Asked Questions
- How much coolant does a Infiniti Q45 hold?
- The Infiniti Q45 cooling system holds 6-10 quarts total depending on the engine. A drain-and-fill replaces about 50-60% of the coolant. For a complete flush, you'll need the full capacity amount.
- What type of transmission fluid does a Infiniti Q45 use?
- The Infiniti Q45 transmission fluid type depends on whether it's an automatic or manual transmission and the model year. Always use the manufacturer-specified fluid — check your owner's manual for the exact ATF or manual transmission fluid required.
- Does a Infiniti Q45 have power steering fluid?
- 2015+ Infiniti Q45 models with electric power steering don't use power steering fluid. Older models with hydraulic power steering use ATF or manufacturer-specific fluid — check your owner's manual.
- What brake fluid does a Infiniti Q45 use?
- Most Infiniti Q45 models use DOT 3 or DOT 4 brake fluid. DOT 4 has a higher boiling point and is preferred for performance driving. Never use DOT 5 (silicone-based) in a system designed for DOT 3/4.
Infiniti Q45 Repair Guides
More Infiniti Q45 Guides
Browse all Fluid Capacities pages →🔋Infiniti Q45 Battery Location❄️Infiniti Q45 Coolant Type💡Infiniti Q45 Headlight Bulb Size🛢️Infiniti Q45 Oil Type & Capacity⚙️Infiniti Q45 Serpentine Belt⚡Infiniti Q45 Spark Plug Type🧪Toyota 4Runner Fluid Capacities🧪Toyota Avalon Fluid Capacities🧪Toyota Camry Fluid Capacities🧪Toyota Celica Fluid Capacities🧪Toyota Corolla Fluid Capacities🧪Toyota Echo Fluid Capacities🧪Toyota Highlander Fluid Capacities🧪Toyota Land Cruiser Fluid Capacities🧪Toyota Matrix Fluid Capacities