Jeep Wrangler 2007 3.8 (JK)

Jeep Wrangler 2007 3.8 petrol description

Crossover / SUV Jeep Wrangler 2007 3.8 has been produced from January, 2007 to January, 2017. It has six-cylinder petrol engine with displacement of 3.8 litres, which produces power of 199 horsepower on 5000 rpm - this is the most powerfull Jeep Wrangler 2007 - 2017 version and torque 315 Nm (Newton metres) on 4000 revolutions per minute.

This 6-cylinder 12-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system, it has no turbine. Engine versions compliant with Euro 3 and Euro 4 emission standards available. Approximate engine life expectancy (mileage until serious repairs are required) for this engine is between 330 000 and 560 000 kilometres. Remember that engine life depends on regular maintenance and the quality of the materials used (oils, fuels, etc.).
More engine specs 
This Jeep Wrangler 3.8 engine oil type is 5W-30 and oil capacity is 4.7 litres.

Jeep Wrangler 2007 3.8 has all four wheel drive (AWD, 4x4) and automatic gearbox with 4 gears.
Jeep Wrangler 2007 3.8 accelerates to speed 100 kilometres per hour in 10.6 seconds. The maximum speed of this car is 176 km/h.

In combined cycle (city and motorway), the Jeep Wrangler 2007 3.8 fuel consumption is 11.6 litres per 100km (8.6 km/l), city fuel economy - 16.4 l/100km, fuel consumption on highway - 8.8 l/100km. Fuel tank capacity is 66 litres or 17.44 gallons, which gives a mileage up to 560 kilometers without refueling in urban cycle and even up to 740 kilometers on highway.
According to user reviews, this Jeep real everyday fuel consumption is 15.8 litres per 100 km, which is 36% more than the manufacturer's stated. More - Real Jeep Wrangler fuel consumption.

With the same engine there is also Jeep Wrangler version with manual gearbox (Jeep Wrangler 2007 3.8 MT 4x4) available, which is more sluggish, reaching 100 km/h 0.6 seconds later (in 11.2 seconds), but manufacturer's fuel consumption is similar - 11.5 litres per 100 km, whereas users reported real fuel consumption is lower by 1.6 litres per 100 km or 10 % - 14.2 litres per 100 km.
Jeep Wrangler 2007

Jeep Wrangler 2007 3.8 technical data

Model: Jeep Wrangler 3.8
Body style: Crossover / SUV
Production period: 2007. January ... 2017. January 
Engine: 3778 cm3 Petrol, 6 cylinders CO2 emissions: 275 g/km
Power: 199 HP ON 5000 RPM Torque: 315 NM ON 4000 RPM
Gearbox: Automatic gearbox (4 gears) Drive type: All wheel drive (AWD, 4x4)
Top speed: 176 km/h Acceleration 0-100 km/h: 10.6 seconds
Fuel consumption (l/100km): 11.6 (combined) 16.4 (urban) 8.8 (highway)
Real fuel consumption: 15.8 l/100km (14.9 MPG) by user reviews from various sources
Fuel tank capacity: 66 litres (17.4 gallons)
Car dimensions: 4.22m (length) 1.87m (width) 1.80m (height)
Turning diameter: 10.4 meters
Trunk capacity: 141 litres
Gross weight: 2268 kg

Jeep Wrangler 2007 3.8 engine EGH 2

Engine reliability:

Overall, this engine can last around 330,000 to 560,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.
Engine displacement 3778 cm3
Number of cylinders 6
Bore (cylinder diameter) 96 mm
Stroke length (piston move) 87.1 mm
Compression ratio 9.6 : 1
Camshaft drive Timing chain

Chain motors are considered more reliable, chain replacement usually is required less often than a timing belt, but they are often louder and vibrate more.

Fuel system Injection
Jeep Wrangler 2007 3.8 oil type 5W-30
Oil capacity 4.7 litres (5 quarts)
Power 200 - 215 HP ON 5000 RPM
Torque 310 - 330 NM ON 4000 RPM
Engine manufacturer Dodge
Start of production (year) 1990
Duration of production 21 years
Engine also used on Dodge Grand Caravan Chrysler Pacifica

Generally, the use of an engine in several models and its long production run is an indication of the quality of the engine and the success of its design.

All Jeep Wrangler crossover [2007 - 2017] modifications

Modification Engine Power Consumption Gearbox
Jeep Wrangler 2007 2.8 CRD 4x4

Most fuel efficient diesel version

2.8 Diesel 177 HP 8.2 l/100km Manual (6)
Jeep Wrangler 2007 2.8 CRD 4x4

Most dynamic version - 100 km/h in 10.3 seconds

2.8 Diesel 177 HP 9.7 l/100km Automatic (5)
Jeep Wrangler 2007 3.8 4x4

Most fuel efficient petrol version

3.8 Petrol 199 HP 11.5 l/100km Manual (6)
Jeep Wrangler 2007 3.8 4x4 3.8 Petrol 199 HP 11.6 l/100km Automatic (4)
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