Isuzu Impulse
Maintenance specs for 4 variants of the Isuzu Impulse — from 1985 to 1993.
1985–1989 Isuzu Impulse
2.0L I4 (4ZC1) · FWD
90 hp / 108 lb-ft
Transmission
Type5-Speed Manual
Fluid75W-90 GL-4
Power Steering
TypeHydraulic
FluidATF Dexron II
Fuel
Tank14.5 gal
TypeRegular 87
Service Intervals
Oil change3,000 mi
Trans service30,000 mi
Coolant flush30,000 mi
Brake fluid30,000 mi
Spark plugs30,000 mi
Timingbelt — replace at 60,000 mi
Air filter30,000 mi
Drive belt60,000 mi
1985–1989 Isuzu Impulse
2.0L I4 Turbo (4ZC1-T) · FWD
140 hp / 166 lb-ft
Transmission
Type5-Speed Manual
Fluid75W-90 GL-4
Power Steering
TypeHydraulic
FluidATF Dexron II
Fuel
Tank14.5 gal
TypePremium 91
Service Intervals
Oil change3,000 mi
Trans service30,000 mi
Coolant flush30,000 mi
Brake fluid30,000 mi
Spark plugs30,000 mi
Timingbelt — replace at 60,000 mi
Air filter15,000 mi
Drive belt60,000 mi
1990–1993 Isuzu Impulse
1.6L I4 DOHC (4XE1) · FWD
130 hp / 102 lb-ft
Transmission
Type5-Speed Manual
Fluid75W-90 GL-4
Power Steering
TypeHydraulic
FluidDexron III ATF
Fuel
Tank12.4 gal
TypePremium 91
Service Intervals
Oil change5,000 mi
Trans service30,000 mi
Coolant flush30,000 mi
Brake fluid30,000 mi
Spark plugs30,000 mi
Timingbelt — replace at 60,000 mi
Air filter30,000 mi
Drive belt60,000 mi
1990–1993 Isuzu Impulse
1.6L I4 DOHC Turbo (4XE1-T) · AWD
160 hp / 150 lb-ft
Transmission
Type5-Speed Manual
Fluid75W-90 GL-4
Power Steering
TypeHydraulic
FluidDexron III ATF
Differentials
Rear fluid80W-90 GL-5
Transfer Case
Fluid75W-90 GL-4
Fuel
Tank12.4 gal
TypePremium 91
Service Intervals
Oil change3,000 mi
Trans service30,000 mi
Coolant flush30,000 mi
Brake fluid30,000 mi
Spark plugs30,000 mi
Timingbelt — replace at 60,000 mi
Air filter15,000 mi
Drive belt60,000 mi