I have Volvo spark plugs. Does anyone know if the gap is adustable on these? They have three side electrodes instead of the normal one. Also, what is a normal life for these Volvo plugs? I've used mine now for almost two years and I'm not sure how to tell when they're no good anymore because the center electrode sits so close, so flushwith the insulator anyway. ("self-cleaning insulator" it says on the new package)

 

That is interesting, my original genuine Volvo plugs were of single electrode type (made in England).

If the centre electrode is flush with the insulator, that is platinum plug and it should be good for approx 100,000 kms/60,000 miles. They do not require cleaning/re-gapping like conventional copper plugs do. As for gapping, I usually leave them alone if they are platinum/iridium plugs, as they are factory-set. However, some people like to gap them and say that they do notice performance improvement. Does the package say anything about gapping (probably doesn't, otherwise you wouldn't be asking). Should you decide to gap them, pay attention as to not to damage the centre electrode.


JPN

 

The 3 prong aren't supposed to be gapped.
I would reccomend changing them every 30K.

 

I figured the 3 prong shouldn't be gapped but I didn't know for sure. Thanks a bunch for the responses.

The package does not say anything about gapping but it doesgive a 3 yr/30k life span. Thanks and take care...

jeff

 

Agree with Tech...the three prong ones should not be gapped. Are they Genuine VOlvoplugs! I too was under the impression the factory OEM ones were single electrode

 

The 3 prong ones are the new styled plugs that Volvo uses.
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