Opel Omega 1999 2.5i-V6

Opel Omega 1999 2.5 petrol description

Sedan Opel Omega 1999 2.5i-V6 has been produced from September, 1999 to September, 2000. It has six-cylinder petrol engine with displacement of 2.5 litres, which produces power of 170 horsepower on 6000 rpm and torque 230 Nm (Newton metres) on 3200 revolutions per minute.

This 6-cylinder 24-valve engine camshaft is driven by belt (What is an engine chain and belt? ). Engine has fuel injection system, this is an atmospheric engine (without turbine). The engine meets the Euro 2 emissions standard. Engine lifespan (mileage before major repairs or overhaul) can last from 360 up to 600 thousand kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs 
This Opel Omega 2.5 engine oil type is 5W-30 and oil capacity is 5.75 litres.

Opel Omega 1999 2.5i-V6 has classical rear wheel drive (RWD) and manual gearbox with 5 gears.
Opel Omega 1999 2.5i-V6 accelerates to speed 100 kilometres per hour in 9.5 seconds. The maximum speed of this car is 228 km/h.

Opel Omega 1999 2.5i-V6 fuel consumption is 10.4 litres per 100km in combined city/highway mode (9.6 km/l), city fuel economy - 14.7 l/100km, fuel consumption on highway - 7.9 l/100km. Fuel tank capacity is 75 litres or 19.82 gallons, which gives a mileage up to 720 kilometers without refueling in urban cycle and even up to 940 kilometers on highway.
According to user reviews, the real everyday fuel consumption of this Opel is in line with the figure specified by the manufacturer. More - Real Opel Omega fuel consumption.

With the same engine there is also Opel Omega version with automatic gearbox (Opel Omega 1999 2.5i-V6 AT) available, which is more sluggish, reaching 100 km/h 1 seconds later (in 10.5 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 0.5 litres per 100 km or 5 % - 10.9 litres per 100 km, whereas users reported real fuel consumption is higher by 1.4 litres per 100 km or 13 % - 11.9 litres per 100 km.
Opel Omega 1999

Opel Omega 1999 2.5i-V6 technical data

Model: Opel Omega 2.5i-V6
Body style: Sedan
Production period: 1999. September ... 2000. September 
Engine: 2498 cm3 Petrol, 6 cylinders CO2 emissions: 251 g/km
Power: 170 HP ON 6000 RPM Torque: 230 NM ON 3200 RPM
Gearbox: Manual gearbox (5 gears) Drive type: Rear wheel drive (RWD)
Top speed: 228 km/h Acceleration 0-100 km/h: 9.5 seconds
Fuel consumption (l/100km): 10.4 (combined) 14.7 (urban) 7.9 (highway)
Real fuel consumption: 10.5 l/100km (22.4 MPG) by user reviews from various sources
Fuel tank capacity: 75 litres (19.8 gallons)
Car dimensions: 4.90m (length) 1.78m (width) 1.46m (height)
Turning diameter: 11 meters
Ground clearance: 140 mm (approximate, with standard suspension, unladen vehicle)
Seats: 5 seats
Trunk capacity: 530 litres
Trunk max capacity: 830 litres (with rear seats folded down)
Gross weight: 2120 kg

Opel Omega 1999 2.5i-V6 engine X25XE

Engine reliability:

Overall, this engine can last around 360,000 to 600,000 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 2498 cm3
Number of cylinders 6
Bore (cylinder diameter) 81.6 mm
Stroke length (piston move) 79.6 mm
Compression ratio 10.8 : 1
Camshaft drive Timing belt

Timing belt engines are generally quieter and less vibrating than chain engines, but belt usually needs to be replaced more often and the risk of breakage is higher.

Fuel system Injection
Opel Omega 1999 2.5i-V6 oil type 5W-30
Oil capacity 5.75 litres (6.1 quarts)
Coolant capacity 9.7 litres (10.3 quarts)
Power 170 HP ON 6000 RPM
Torque 230 NM ON 3200 RPM
Start of production (year) 1994
Duration of production 6 years
Engine also used on Opel Vectra Opel Calibra

All Opel Omega sedan [1999 - 2003] modifications

Modification Engine Power Consumption Gearbox
Opel Omega 1999 2.0 DTi-16V Sep 1999 — Sep 2000

Most fuel efficient diesel version

2.0 Diesel 100 HP 6.6 l/100km Manual (5)
Opel Omega 1999 2.2i-16V

Most fuel efficient petrol version

2.2 Petrol 144 HP 9.6 l/100km Manual (5)
Opel Omega 1999 2.2i-16V 2.2 Petrol 144 HP 10.1 l/100km Automatic (4)
Opel Omega 2000 2.2 DTi-16V Sep 2000 — Sep 2003

Most fuel efficient diesel version by real consumption

2.2 Diesel 120 HP 7.1 l/100km Manual (5)
Opel Omega 1999 2.5i-V6 Sep 1999 — Sep 2000 2.5 Petrol 170 HP 10.4 l/100km Manual (5)
Opel Omega 1999 2.5i-V6 Sep 1999 — Sep 2000 2.5 Petrol 170 HP 10.9 l/100km Automatic (4)
Opel Omega 1999 2.5 TD Sep 1999 — Jan 2001 2.5 Diesel 130 HP 7.8 l/100km Manual (5)
Opel Omega 1999 2.5 TD Sep 1999 — Jan 2001 2.5 Diesel 130 HP 9.0 l/100km Automatic (4)
Opel Omega 2001 2.5 DTi Aug 2001 — Sep 2003

Most powerfull diesel version (150 HP)

2.5 Diesel 150 HP 7.6 l/100km Manual (5)
Opel Omega 2001 2.5 DTi Aug 2001 — Sep 2003

Most powerfull diesel version (150 HP)

2.5 Diesel 150 HP 8.6 l/100km Automatic (4)
Opel Omega 2000 2.6i-V6 Sep 2000 — Sep 2003 2.6 Petrol 180 HP 10.6 l/100km Manual (5)
Opel Omega 2000 2.6i-V6 Sep 2000 — Sep 2003 2.6 Petrol 180 HP 11.5 l/100km Automatic (4)
Opel Omega 1999 3.0i-V6 Sep 1999 — Jan 2001 3.0 Petrol 211 HP 10.4 l/100km Manual (5)
Opel Omega 1999 3.0i-V6 Sep 1999 — Jan 2001 3.0 Petrol 211 HP 11.1 l/100km Automatic (4)
Opel Omega 2001 3.2i-V6 Jan 2001 — Jan 2002 3.2 Petrol 218 HP 11.8 l/100km Automatic (4)
Opel Omega 2002 3.2i-V6 Jan 2002 — Sep 2003 3.2 Petrol 218 HP 11.8 l/100km Automatic (4)
Opel Omega 2000 5.7i V8 Jan 2000 — Dec 2001

Most dynamic version - 100 km/h in 7 seconds

5.7 Petrol 310 HP 14.0 l/100km Automatic (4)
Opel Omega 1999 reviews
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