1.6 with gasoline straight-4 1.6 L 80 HP at 5400 RPM, 130 N⋅m at 3400 RPM engine (1988.9–1993.5)
800–850 rpm800–850 rpm800–850 rpm
1.8 i CAT with gasoline straight-4 1.8 L 89 HP at 5400 RPM, 145 N⋅m at 2800 RPM engine (1990.3–1995.11)
750–910 rpm750–910 rpm750–910 rpm
All other modifications
720–880 rpm720–880 rpm720–880 rpm
expand_moreIdling speed with manual gearbox
1.4 S with gasoline straight-4 1.4 L 74 HP engine (1988.9–1992.6)
900–950 rpm900–950 rpm900–950 rpm
1.6 with gasoline straight-4 1.6 L 80 HP at 5400 RPM, 130 N⋅m at 3400 RPM engine (1988.9–1993.5)
900–950 rpm900–950 rpm900–950 rpm
1.7 D with diesel straight-4 1.7 L 56 HP engine (1988.10–1992.9)
820–880 rpm820–880 rpm820–880 rpm
1.7 TD with diesel straight-4 1.7 L 80 HP at 4400 RPM, 168 N⋅m at 2400 RPM engine (1990.3–1995.11)
780–880 rpm780–880 rpm780–880 rpm
1.7 TD with diesel straight-4 1.7 L 80 HP engine (1990.3–1995.11)
780–880 rpm780–880 rpm780–880 rpm
1.8 i CAT with gasoline straight-4 1.8 L 89 HP at 5400 RPM, 145 N⋅m at 2800 RPM engine (1990.3–1995.11)
820–980 rpm820–980 rpm820–980 rpm
2.0 i 4x4 CAT with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM engine (1989.1–1995.11)
720–780 rpm720–780 rpm720–780 rpm
2.0 i 4x4 with gasoline straight-4 2.0 L 127 HP engine (1989.1–1992.9)
720–780 rpm720–780 rpm720–780 rpm
No adjustment possible
2.0 i CAT with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM engine (1988.9–1995.11)
720–780 rpm720–780 rpm720–780 rpm
2000/GT 16V 4x4 CAT with gasoline straight-4 2.0 L 148 HP at 6000 RPM, 196 N⋅m at 4800 RPM engine (1990.2–1995.11)
860–1020 rpm860–1020 rpm860–1020 rpm
2000/GT 16V CAT with gasoline straight-4 2.0 L 148 HP at 6000 RPM, 196 N⋅m at 4800 RPM engine (1990.2–1995.11)
860–1020 rpm860–1020 rpm860–1020 rpm
2000/GT 16V with gasoline straight-4 2.0 L 148 HP engine (1989.1–1994.6)
860–1020 rpm860–1020 rpm860–1020 rpm
All other modifications
720–880 rpm720–880 rpm720–880 rpm
No adjustment possible
Minimum engine oil temperature at VET
176°F176°F80°C
expand_morePetrol exhaust gas values
expand_moreCO content at idling speed
1.4 S with gasoline straight-4 1.4 L 74 HP engine (1988.9–1992.6)
0.5–1.5 %0.5–1.5 %0.5–1.5 %
1.6 i with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 125 N⋅m at 3200 RPM engine (1988.9–1995.11)
1–1.5 %1–1.5 %1–1.5 %
1.6 i with gasoline straight-4 1.6 L 74 HP engine (1988.9–1995.11)
1–1.5 %1–1.5 %1–1.5 %
1.6 i with gasoline straight-4 1.6 L 74 HP engine (1988.9–1995.11)
1–1.5 %1–1.5 %1–1.5 %
1.6 with gasoline straight-4 1.6 L 80 HP at 5400 RPM, 130 N⋅m at 3400 RPM engine (1988.9–1993.5)
1–1.5 %1–1.5 %1–1.5 %
1.8 i CAT with gasoline straight-4 1.8 L 89 HP at 5400 RPM, 145 N⋅m at 2800 RPM engine (1990.3–1995.11)
0.5 %0.5 %0.5 %
2.0 i 4x4 CAT with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM engine (1989.1–1995.11)
0.5 %0.5 %0.5 %
2.0 i 4x4 with gasoline straight-4 2.0 L 127 HP engine (1989.1–1992.9)
0.5 %0.5 %0.5 %
2.0 i CAT with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM engine (1988.9–1995.11)
0.5 %0.5 %0.5 %
2.0 i with gasoline straight-4 2.0 L 127 HP engine (1988.9–1992.9)
0–1 %0–1 %0–1 %
2000/GT 16V with gasoline straight-4 2.0 L 148 HP engine (1989.1–1994.6)
0.7–1.2 %0.7–1.2 %0.7–1.2 %
All other modifications
0–0.5 %0–0.5 %0–0.5 %
expand_moreCO content at increased idling speed
All other modifications
0.3 %0.3 %0.3 %
expand_moreIgnition time
1.4 S with gasoline straight-4 1.4 L 74 HP engine (1988.9–1992.6)
-5°00' - before TDC + after TDC
All other modifications
-10°00' - before TDC + after TDC
No adjustment possible
Increased idling speed
2800–3200 rpm2800–3200 rpm2800–3200 rpm
Lambda value
0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ
expand_moreMaximum HC content at idling
1.8 i CAT with gasoline straight-4 1.8 L 89 HP at 5400 RPM, 145 N⋅m at 2800 RPM engine (1990.3–1995.11)
100 ppm100 ppm100 ppm
2.0 i 4x4 CAT with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM engine (1989.1–1995.11)
100 ppm100 ppm100 ppm
2.0 i 4x4 with gasoline straight-4 2.0 L 127 HP engine (1989.1–1992.9)
100 ppm100 ppm100 ppm
2.0 i CAT with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM engine (1988.9–1995.11)
100 ppm100 ppm100 ppm
All other modifications
350 ppm350 ppm350 ppm
To reduce environment impact and pass government inspections keep emission parameters at the level prescribed by Opel.
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1991 Opel Vectra Sedan user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and Opel warranty policy for your region. In some regions DIY service may invalidate your warranty.
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Opel Vectra Sedan service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 1991 Opel Vectra Sedan you're not only saving money, but also also improving your technical skills and learning something new.