The Peugeot RFT (XU10J4) is a 1,998 cc, inline‑four naturally aspirated petrol engine produced between 1992 and 1997. It features a cast iron block, aluminium cylinder head, and a dual overhead camshaft (DOHC) 16 — valve layout. Output is rated at 98 kW (133 PS), with peak torque of 180 Nm, providing a sporty character for its era.
Fitted primarily to the 405 Mi16 and 605 SRi, the RFT was engineered for spirited performance and driver engagement. It offered a linear power deliv…
Production years 1992–1997 meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/9876).
The Peugeot RFT (XU10J4) is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for performance sedans (1992-1997). It combines DOHC 16-valve architecture with electronic fuel injection to deliver a high-revving, linear power curve. Designed to meet Euro 1 standards, it prioritizes driving dynamics over ultimate efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 86.0 mm × 86.0 mm | |
Power output | 98 kW (133 PS) @ 6,000 rpm | |
Torque | 180 Nm @ 4,000 rpm | |
Fuel system | Bosch Motronic 1.3 multi-point injection | |
Emissions standard | Euro 1 | |
Compression ratio | 10.4:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven | |
Oil type | PSA B71 2290 (SAE 10W‑40) | |
Dry weight | 135 kg |
The Peugeot RFT (XU10J4) was used across Peugeot's performance sedans with longitudinal mounting. This engine received minor ECU and accessory drive adaptations between the 405 and 605 applications. All adaptations are documented in OEM technical bulletins.
The RFT's primary reliability risk is cylinder head cracking on early builds, with elevated incidence under track use or overheating. PSA internal service data indicates this was a notable concern for pre-1994 units, while timing belt failure remains a critical, preventable risk. Neglecting the 60,000 km belt interval makes catastrophic engine failure highly probable.
Analysis derived from PSA technical bulletins (1992-1997) and owner club technical archives. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The RFT can be very reliable if meticulously maintained. The critical factors are replacing the timing belt every 60,000 km and avoiding overheating, especially on pre-1994 engines with the early head design. With proper care, these engines can easily exceed 200,000 km and remain a joy to drive.
The top issues are cylinder head cracking (on pre-1994 engines), timing belt failure (if not changed at 60k km), failing distributor components, and coolant leaks from the water pump or hoses. These are well-documented in PSA service information and enthusiast communities.
The RFT was primarily used in the Peugeot 405 Mi16 (Phase 2) and the Peugeot 605 SRi. It was also fitted to the Citroën XM 2.0 16V (VSX/Exclusive). It's the 133 PS high-performance variant of the XU10 engine family, easily identified by its red rocker cover.
Yes, it has excellent tuning potential. Simple modifications like a performance exhaust, air filter, and ECU chip can yield 10-20 kW gains. More extensive work with cams, head porting, and higher compression can push power towards 150-160 kW. The bottom end is very strong, making it a popular choice for tuning.
Fuel economy is typical for a performance engine of its era. Expect around 9.0-10.5 L/100km (27-31 mpg UK) in mixed driving for a 405 Mi16. Highway cruising can see figures closer to 7.0 L/100km (40 mpg UK). Economy will suffer if the engine is tuned or driven aggressively.
Yes, absolutely. The RFT is an interference engine. If the timing belt breaks or jumps, the pistons will collide with the open valves, causing severe internal damage that often requires a full engine rebuild or replacement. This makes the 60,000 km belt change non-negotiable.
Peugeot recommends oil meeting the PSA B71 2290 specification, typically a 10W-40 semi-synthetic or mineral oil for these older engines. Using a quality oil with good high-temperature stability is important for engine longevity. ACEA A3/B3 rated oils are generally suitable.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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