Correct gap for spark plugs for peugeot 406 1.8 petrol engine?
Answers:
Should tell you on the box. I thought the gap should be 2mm.
check through manufaturer manual of spark candel you use they tell you what suitable spark candel code and gab space for your car which may varies as your country location and the weather,hot/cold weather.etc.
The correct gap is 0.9 mm.
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