Sparkplug gap question.
08-01-2002, 09:19 AM
#11
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Vehicle: 2008 Toyota Prius 2006 Suzuki SV650S
No, from what I have seen, +4's have problems in ANY car. I have yet to see a car get more power or MPG out of a set of +4s. (platinum or normal +4's)
The theory behind the +4's is that the spark will always take the path to least resistance. If one electrode get's carboned up, it will jump to one of the other 3 electrodes. Only problem with this theory, is that if one electrode is carboned up, more than likely they ALL are. Also the 4 prongs of the +4 plugs tend to "mask" the spark, which can lead to slow/improper flame front travel.
The theory behind the +4's is that the spark will always take the path to least resistance. If one electrode get's carboned up, it will jump to one of the other 3 electrodes. Only problem with this theory, is that if one electrode is carboned up, more than likely they ALL are. Also the 4 prongs of the +4 plugs tend to "mask" the spark, which can lead to slow/improper flame front travel.
