Engine Mazda GY-DE

The 2.5-liter Mazda GY-DE gasoline engine was produced by the concern from 1999 to 2002 and was installed only on the popular MPV minivan in the LW body before its first restyling. Structurally, this power unit has much in common with the Ford LCBD and Jaguar AJ25 engines.

The engine was installed on:

  • Mazda MPV LW in 1999 – 2002.


Production years 1999-2002
Displacement, cc 2495
Fuel system distributed injection
Power output, hp 170
Torque output, Nm 207 – 211
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 81.6
Piston stroke, mm 79.5
Compression ratio 9.7
Features DOHC
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 5.2
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Mazda MPV 2001)
— city
— highway
— combined
Engine lifespan, km ~350 000

Disadvantages of the Mazda GY-DE engine

  • The motor is famous for its reliability and long life, but the fuel consumption is rather big.
  • Instead of a fuel filter in the tank, there is a regular mesh that quickly clogs.
  • If the mesh is clogged, then the fuel pump and fuel injectors quickly fail.
  • The water pump serves quite little, and its replacement is difficult due to the location.
  • The rest of the problems are related to oil leaks, especially from under the top cover of the cylinder head.

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