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How to Modify Spark Plugs on LPG Cars to Improve Performance

Model: (Various brands) Various
Part: Spark plugs

In this video tutorial, see how to modify the spark plugs on LPG cars to improve performance. Required materials: the LPG car spark plug and a feeler gauge. This is just an experiment to try to enhance the performance of LPG vehicles. If you have issues with LPG and not petrol, you can try adjusting the spark plugs; check the thickness of the plug where the spark exits; LPG ignites differently than petrol, needing more heat and slightly earlier; thus, a solution to improve performance is to lower the electrode by 1 mm. To be precise, use the feeler gauge. You need to go from a thickness of 0.8 mm to 0.7 mm to gain benefits with LPG.

Updated on 11 July 2026 by ScegliAuto

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by ScegliAuto

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