Renault S8u engine

The 2.5-liter diesel engine Renault S8U was produced at the Sofim factory from 1980 to 2001 and installed in both Safrane sedans and commercial minivans Trafic and Master. The version of this engine with direct fuel injection is known by its own index S9U.

Technical data of Renault S8U 2.5 liter engine.

Atmospheric versions with indexes 720, 722, 730 and 731:
Exact capacity2445 cm³
Power systemforklift chambers
Engine power71 HP
Torque150 nm
Engine blockcast iron R4
Block headaluminum 8v
Cylinder diameter93 mm
Piston stroke.90 mm
Compression ratio22.0
Engine featuresSOHC
Hydraulic compensator. there is no
Timing drivestrip
Timing phase adjusterthere is no
Turbochargingthere is no
What oils to use5.5 liters 10W-40
Fuel typediesel
Environmental classEURO 0
Approximate life expectancy500 000 HP
Atmospheric versions with indexes 742, 748, 750, 752, 758, 770 and 772:
Exact capacity2499 cm³
Power systemforklift chambers
Engine power75 - 80 HP
Torque155 - 165 nm
Engine blockcast iron R4
Block headaluminum 8v
Cylinder diameter93 mm
Piston stroke.92 mm
Compression ratio22.0 - 23.0
Engine featuresSOHC
Hydraulic compensator. there is no
Timing drivestrip
Timing phase adjusterthere is no
Turbochargingthere is no
What oils to use5.5 liters 10W-40
Fuel typediesel
Environmental classEURO 0
Approximate life expectancy500 000 HP
Turbocharged modifications with indexes 762 and 763:
Exact capacity2499 cm³
Power systemforklift chambers
Engine power113 HP
Torque240 nm
Engine blockcast iron R4
Block headaluminum 8v
Cylinder diameter93 mm
Piston stroke.92 mm
Compression ratio22.5
Engine featuresSOHC
Hydraulic compensator. there is no
Timing drivestrip
Timing phase adjusterthere is no
TurbochargingKKK K16
What oils to use6.5 liters 10W-40
Fuel typediesel
Environmental classEURO 1
Approximate life expectancy450 000 HP

Fuel consumption Renault S8u engine

Using the example of the 1993 Renault Safrane with a manual transmission:
City9.9 litry
Route5.5 litry
Mixed7.4 litry

Engine Overview and Common Failures

The weight of the S8U engine assembly is 250 kg. The engine number S8U is located at the junction of the block and the cylinder head. This is a robust diesel engine with a long service life, but it often experiences cylinder head gasket failure when overheated. It is also important to monitor the condition of the timing belt, as its breakage can cause valve bending. The teeth on the crankshaft pulley wear out over time, significantly reducing the lifespan of the belt. The simple and reliable Bosch VE mechanical fuel injection pump regularly develops leaks at the seals. On high mileage vehicles, gasket leaks at the block junction and the rocker cover plate are quite common.

Engine Renault S8u

Nissan
Interstar 2 (X70)1999 - 2000
Opel
Movano A (X70)1998 - 2000
Renault
Master 1 (T35)1980 - 1997
Master 2 (X70)1997 - 2000
Safrane 1 (B54)1992 - 1996
Trafic 1 (TXW)1980 - 2001

Engines from the same line as Renault S8u engine

See Also

Renault K9K engine

The 1.5-liter Renault K9K or 1.5 dCi diesel engine has been produced by the company since 2001 and installed in numerous corporate models under the Renault, Nissan, or Dacia brands. The same engine can be found under the hood of front-wheel drive Mercedes vehicles as the OM607 and OM608. The K series also includes the following engines: K4J, K4M, K7J, and K7M.

Nissan - Renault R9m Engine

The 1.6-liter diesel engine Nissan and Renault R9M or 1.6 dCi has been produced since 2011 and is installed in models such as Megane, Scenic, Espace, Koleos, as well as Qashqai and X-Trail. In Mercedes cars, this diesel engine is known as OM622 and OM626. The R-Series engine range also includes the R9N.

Renault F9qt engine

The 1.9-liter diesel engine F9Q or Renault 1.9 dTi was produced by the company between 1997 and 2003 and installed in their most popular models such as Megane, Scenic, and Volvo S40. A Common Rail version of this engine, designated with the suffix dCi, was available from 1998 onwards. Other engines in the F series include: F8M, F8Q, and F9Q.

Peugeot Dv5rce Engine

The 1.5-liter Peugeot DV5RCE, YHS or BlueHDI 110 engine has been produced since 2020 and is installed in popular models such as the second-generation 2008 crossover and the third-generation Citroen C4. In Opel vehicles, this diesel engine is known by its own index, F15DT. The DV5 series includes: DV5RD, DV5RE, DV5TED4, DV5RUC, DV5RUCD, and DV5RC.

Land Rover 448hp engine

The 4.4-liter petrol engine Land Rover 448PN was manufactured by the company from 2004 to 2009 and was installed in popular off-road vehicles such as Range Rover, Range Rover Sport, and Discovery 3. This engine was specially developed for Land Rover by Jaguar engineers and is also known as AJ41. The AJ-V8 series includes the following power units: 306 horsepower, 428 horsepower, 508PN, and 508 horsepower.