Spark Plugs
I've been wanting to put some platinum or iridium spark plugs in my 2004 Swift +. It is the North American 1.6L engine. I wanted to put in NGK or Denso but I can't find out what plugs are compatible.
When I emailed NGK they had no suggestions. Denso never got back to me but I think the IK20s might work. I got this from cross-referencing Autolite 3923's and AC Delco 41-801's & 41-602's. Can anyone confirm this or recommend any other plugs and where to buy them on-line in Canada or the States.
Thanks
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