What should the spark plug gap be on a Renault Megane?
What should the spark plug gap be on a Renault Megane? 2001 ive just gone ahead and replaced them anyway and i did noticee they had a smaller gap than the ones that were in it. The spark plug gap of 0.9mm should be OK. Despite what many people say it is good practice to always check the gap before fitting. What should the spark plug gap be on an old car? The rule of thumb for the spark plug gap on older engines is coil ignition 0.025 thou and magneto ignition 0.018 - 0.020 thou. What do you need...