The 2.5-liter Chevrolet X25D1 or LF4 engine was produced from 2000 to 2014 at a Korean plant and was installed on relatively large concern models such as Epica and Evanda. The XK-6 range of 6-cylinder units was developed jointly by Daewoo and Porsche.
One of the features of the engine is the presence of VIS. This is the Variable Intake System, in other words, the intake geometry change system. A method was used to change the length of the intake manifold.
X (GM Korea) family: X20D1, X25D1.
Specifications
| Production years | 2000-2014 |
| Displacement, cc | 2492 |
| Fuel system | distributed injection |
| Power output, hp | 155 |
| Torque output, Nm | 237 |
| Cylinder block | cast iron R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 77 |
| Piston stroke, mm | 89.2 |
| Compression ratio | 9.8 |
| Features | VIS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.5 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Chevrolet Epica 2010) — city — highway — combined |
13.8 6.6 9.3 |
| Engine lifespan, km | ~260 000 |
| Weight, kg | 175 |
The engine was installed on:
- Chevrolet Evanda V200 in 2000 – 2006;
- Chevrolet Epica V250 in 2006 – 2014;
- Daewoo Magnus V200 in 2000 – 2006;
- Daewoo Tosca V250 in 2006 – 2013.
Disadvantages of the X25D1 engine
- The most famous engine failure is the cranking of the liners due to the wedge of the oil pump;
- The crumbs of the collapsing catalyst are drawn into the cylinders, where they scratch the walls;
- Another cause of oil burning is the wear of valve seals and the occurrence of rings;
- The cooling system delivers a lot of problems here: either the pipes flow, or the tank will burst;
- After over-tightening the drain plug, the crankcase of the power unit often cracks;
- Alusil coating of cylinder walls can begin to break down already at 100,000 km;
- The oil pressure sensor, generator and hydraulic lifters have a modest resource.
Frequently asked questions about the Chevrolet X25D1
How much power does the Chevrolet X25D1 make?
The Chevrolet X25D1 develops 155 hp and 237 Nm of torque.
How much oil does the Chevrolet X25D1 take and which one?
Engine oil capacity: 6.5 liters. Recommended oil: 5W-30.
Does the Chevrolet X25D1 have a timing belt or chain?
The Chevrolet X25D1 uses a timing chain.
Is the Chevrolet X25D1 turbocharged?
No, the Chevrolet X25D1 is naturally aspirated.
Does the Chevrolet X25D1 need valve clearance adjustment?
No, the Chevrolet X25D1 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Chevrolet X25D1 last?
The typical lifespan of the Chevrolet X25D1 is ~260 000 km with proper maintenance.
What is the fuel consumption of the Chevrolet X25D1?
Chevrolet Epica 2010: city 13.8, highway 6.6, combined 9.3 L/100 km.
What cars was the Chevrolet X25D1 installed on?
Chevrolet Evanda V200 in 2000 - 2006; Chevrolet Epica V250 in 2006 - 2014; Daewoo Magnus V200 in 2000 - 2006; Daewoo Tosca V250 in 2006 - 2013.
What are the common problems of the Chevrolet X25D1?
The most famous engine failure is the cranking of the liners due to the wedge of the oil pump. The crumbs of the collapsing catalyst are drawn into the cylinders, where they scratch the walls. All known problems.
What engines are related to the Chevrolet X25D1?
X (GM Korea) family: X20D1.
