Hey guys, I was woundering if anybody knew off hand the spacing required for our spark plugs I was going to possibly switch em for some 4 pronged ones which I used to have in my cavalier.. I like em and help gas mileage abit along with preformance.. hehe

 

If they are the correct plug for your Fit, they should be gapped accordingly. I'm not sure, but the manual might show what the spark plug gap is supposed to be set at.

 

Well I know if it says.. "For Honda Fit" it will work.. but I wanted to know what the gap is because iam pretty sure there will be none avaliable unless i get them shipped from japan..

 

I like to tell you a story. I owned a honda civic that had one bad cylynder because of oil in the cylinder. The only plug that would run in it was a bosh platnum. I selected a different heat range plug for that cylinder. The parts man said to buy the four prong plug for xxxx bucks I would get a lifetime money back warrenty if it fouled or goes bad. That plug did not run one day. I dont remember the brand. I got my money back -he got an oily 4 prong plug. Sometimes I wounder about what is promoted. My situation was special but why did one plug do fine but the other plug they called superman did not do fine? I drove that civic a long time that way and maintained good gas mileage. Its nice to see a real difference. A buddy of mine builds sprint car motors an He scratched his head about this plug thing I had going on. We all got a laugh or two.
So what is different about this plug you speak of and why is is it better then Honda plugs?

 

get what it recommended for your car. the four prongs wont help you with gas milege, and sometimes makes your car run worse. its not like it gives you 4 sparks at once, its still gonna be only one spark

 

just get NGK

 

Hopefully someone will eventually just post the spark plug gap value

 

The Honda Fit owner's manual lists either the
NGK Laser Iridum Plug IZFR6K-13 or the
Nippon Denso Plug SKJ20DR-M13

The "13" on both part numbers refer to the gap in millimeters.
1.3mm = .051"

on NGK Spark Plugs USA they mistakenly list .044" as the gap - but it should be .051"

The Denso site is
DENSO SPARK PLUGS

The maintenance minder indicated ("A 4") that my plugs should be changed at approximately 172,000 kilometers or 107,000 miles. Those are mostly highway miles, so it may show up sooner for city driving.

EDIT - (just received my service manual yesterday)

The service manual lists 1.2mm - 1.3mm
I think they made a mistake in the conversion to inches.
The manual lists 0.042 inches - 0.051 inches but I think the
conversion should be 0.047 inches to 0.051 inches.