The 2.0-liter 8-valve Peugeot XU10J2 or RFU engine was produced from 1992 to 1998 and was installed on a number of mass models of the concern of its time, such as 306, 405, 605 and 806. A 147-horsepower turbo version of the power unit with the XU10J2TE or RGX index was also offered. .
XU family: XU5JP, XU7JB, XU7JP, XU7JP4, XU10J2, XU10J4R.
Specifications
| Production years | 1992-1998 |
| Displacement, cc | 1998 |
| Fuel system | injector |
| Power output, hp | 121 |
| Torque output, Nm | 170 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.5 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.25 |
| Fuel type | petrol |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Peugeot 605 1993) — city — highway — combined |
12.8 6.8 9.5 |
| Engine lifespan, km | ~280 000 |
| Weight, kg | 135 |
The engine was installed on:
- Citroen Xantia in 1992 – 1997;
- Citroen ZX in 1993 – 1998;
- Peugeot 306 I (N3/N5) in 1993 – 1997;
- Peugeot 405 I (D6/D7) in 1992 – 1997;
- Peugeot 605 I (Y30) in 1993 – 1995;
- Peugeot 806 I (U60) in 1994 – 1998.
Disadvantages of the XU10J2 engine
- Due to the fault of bad fuel, candles quickly deteriorate, followed by ignition coils;
- The reason for the floating engine speed usually lies in the idle speed controller;
- Monitor the condition of the timing belt, declared 120,000 km, it may not pass;
- Oil leaks regularly from under the valve cover and crankshaft oil seal;
- The plastic intake manifold often cracks and it is difficult to find a replacement for it;
- On specialized forums they write about unstable operation in frost and freezing crankcase ventilation;
- Due to the lack of hydraulic lifters, you will have to adjust the valves.
Frequently asked questions about the Peugeot XU10J2
How much power does the Peugeot XU10J2 make?
The Peugeot XU10J2 develops 121 hp and 170 Nm of torque.
How much oil does the Peugeot XU10J2 take and which one?
Engine oil capacity: 4.25 liters. Recommended oil: 5W-40.
Does the Peugeot XU10J2 have a timing belt or chain?
The Peugeot XU10J2 uses a timing belt.
Is the Peugeot XU10J2 turbocharged?
No, the Peugeot XU10J2 is naturally aspirated.
Does the Peugeot XU10J2 need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Peugeot XU10J2 last?
The typical lifespan of the Peugeot XU10J2 is ~280 000 km with proper maintenance.
What is the fuel consumption of the Peugeot XU10J2?
Peugeot 605 1993: city 12.8, highway 6.8, combined 9.5 L/100 km.
What cars was the Peugeot XU10J2 installed on?
Citroen Xantia in 1992 - 1997; Citroen ZX in 1993 - 1998; Peugeot 306 I (N3/N5) in 1993 - 1997; Peugeot 405 I (D6/D7) in 1992 - 1997; Peugeot 605 I (Y30) in 1993 - 1995; Peugeot 806 I (U60) in 1994 - 1998.
What are the common problems of the Peugeot XU10J2?
Due to the fault of bad fuel, candles quickly deteriorate, followed by ignition coils. The reason for the floating engine speed usually lies in the idle speed controller. All known problems.





