Infiniti Q45
Maintenance specs for 3 variants of the Infiniti Q45 — from 1990 to 2006.
1990–1996 Infiniti Q45
4.5L V8 (VH45DE) · RWD
278 hp / 292 lb-ft
Transmission
Type4-Speed Automatic
FluidNissan Matic D ATF
Drain & fill4.5 qt
Full capacity10.5 qt
Power Steering
TypeHydraulic
FluidNissan PSF
Differentials
Rear fluidGL-5 80W-90
Rear capacity2.8 qt
Fuel
Tank22.5 gal
TypePremium 91
Service Intervals
Oil change7,500 mi
Trans service30,000 mi
Coolant flush60,000 mi
Brake fluid30,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Drive belt60,000 mi
1997–2001 Infiniti Q45
4.1L V8 (VH41DE) · RWD
266 hp / 278 lb-ft
Transmission
Type4-Speed Automatic
FluidNissan Matic D ATF
Drain & fill4.5 qt
Full capacity10.5 qt
Power Steering
TypeHydraulic
FluidNissan PSF
Differentials
Rear fluidGL-5 80W-90
Rear capacity2.8 qt
Fuel
Tank21.4 gal
TypePremium 91
Service Intervals
Oil change7,500 mi
Trans service30,000 mi
Coolant flush60,000 mi
Brake fluid30,000 mi
Spark plugs60,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Cabin filter15,000 mi
Drive belt60,000 mi
2002–2006 Infiniti Q45
4.5L V8 (VK45DE) · RWD
340 hp / 333 lb-ft
Transmission
Type5-Speed Automatic
FluidNissan Matic J ATF
Drain & fill4.5 qt
Full capacity10.9 qt
Power Steering
TypeHydraulic
FluidNissan PSF
Differentials
Rear fluidNissan Differential Fluid 80W-90
Rear capacity2.8 qt
Fuel
Tank21.4 gal
TypePremium 91
Service Intervals
Oil change7,500 mi
Trans service60,000 mi
Coolant flush60,000 mi
Brake fluid30,000 mi
Spark plugs105,000 mi
Timingchain (no scheduled replacement)
Air filter30,000 mi
Cabin filter15,000 mi
Drive belt60,000 mi