Wrong spark plugs

#1

hi guys
for my skoda fabia i have changed the spark plugs but i think those were wrong, bought from amazon. those are for LPG CNG cars instead of petrol. since then my car is sluggish. is this the reason car is not accelerating.

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#2

Cause and effect… could very well be a reason. Swap them to the correct plug. don’t depend on Amazon to tell you if it is the right spark plug, their search engine for auto parts is pretty poor - as you found!

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#3

Yes. Almost always the best plugs are the ones specified by the carmaker when the car was new. Anything else is an experiment and quite possibly a mistake.

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#4

If it protrudes too far into the combustion chamber in an interference engine, the physical damage caused to the piston crown can be very serious. If the plug used is of a higher heat range, then you will experince starting difficulties and higher fuel compsumption.

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#5

Doesn’t matter if it is an interference engine. Can happen to ANY engine, interference or not. “Interference engine” is a description of valve clearance if the timing belt or chain breaks.

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#6

Heat range has nothing to do with how hot the spark is, that’s controlled by the gap, heat range is how fast/slow a spark plug dissipates heat.

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