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.
Mazda V6 family: GY-DE, AJ-DE, AJ-VE.
Specifications
| 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 |
14.0 8.2 10.7 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 170 |
The engine was installed on:
- Mazda MPV LW in 1999 – 2002.
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.
Frequently asked questions about the Mazda GY-DE
How much power does the Mazda GY-DE make?
The Mazda GY-DE develops 170 hp and 207 - 211 Nm of torque.
How much oil does the Mazda GY-DE take and which one?
Engine oil capacity: 5.2 liters. Recommended oil: 5W-30.
Does the Mazda GY-DE have a timing belt or chain?
The Mazda GY-DE uses a timing chain.
Is the Mazda GY-DE turbocharged?
No, the Mazda GY-DE is naturally aspirated.
Does the Mazda GY-DE need valve clearance adjustment?
No, the Mazda GY-DE has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Mazda GY-DE last?
The typical lifespan of the Mazda GY-DE is ~350 000 km with proper maintenance.
What is the fuel consumption of the Mazda GY-DE?
Mazda MPV 2001: city 14.0, highway 8.2, combined 10.7 L/100 km.
What cars was the Mazda GY-DE installed on?
Mazda MPV LW in 1999 - 2002.
What are the common problems of the Mazda GY-DE?
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. All known problems.
