From Wikipedia, the free encyclopedia
| Opel engine codes explained
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| 1. = Emissions controls
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2./3. = Displacement (in tenths of liters)
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4. = Compression ratio
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5. = Fuel feed (only on gasoline engines)
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5./6. = Special conditions
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| empty = no emissions controls/ECE R83A
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12 = 1.2 Liter
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G = < 8.5:1
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V = Carburetor
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A = Egyptian market/revised version
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P = High Output (until 2000)
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| E = Euronorm catalytic converter
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14 = 1.4 Liter
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L = > 8.5–9.0:1
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Z = Single-point injection
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B = Bedford/IBC
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P = TwinPort (since 2000)
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| C = Euro 1, Three-way catalytic converter
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16 = 1.6 liter
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N = > 9.0–9.5:1
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E = Multi-point injection
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D = Daewoo (D-TEC)
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Q = Colombia
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| X = Euro 2
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17 = 1.7 liter
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S = > 9.5–10.5:1
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H = Direct injection
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E = Ecoflex?
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R = enhanced power
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| Y = Euro 3
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18 = 1.8 liter
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X = > 10.5–11.5:1
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F = FlexFuel (E85)
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F = government fleet (de-tuned)
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S = Increased power/turbocharging
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| Z = Euro 4
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20 = 2.0 liter
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Y = > 11,5:1
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L = LPG
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G = Natural gas
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T = Turbocharger/special version
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| A = Euro 5 (since 2007), Austria
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25 = 2.5 liter
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D = Diesel
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N = Natural gas (often used with 6th character G)
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H = high output/forced induction
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U = Uruguay
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| B = Euro 6
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28 = 2.8 liter
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I = Irmscher
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V = Volume model
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| D = Euro 6c
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30 = 3.0 liter
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J = adjusted output
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W = Venezuela
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| F = Euro 6d
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32 = 3.2 liter
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K = Comprex
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1 = Family 1 engine
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| H = Australian ADR 37 ("Holden")
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L = reduced power/low pressure turbo
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2 = Family II engine
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| S = Swedish/Swiss A 10/11 emissions
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M = Middle East/Common Rail Diesel
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empty = no special condition
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