Honda Car Forum

And performance and all that good stuff?

Your fuel efficiency wont change enough to make a differance because of the spark plug you use. So basically it doesn't really matter.

I doubt there'll be any change no matter what you do.

Find out what Honda uses at the factory and use that.

Does not really matter between, copper, v-groove, iridium, titanium, etc...The only real reason to decide between those types is anticipated change intervals and costs. With the varying costs of the upper level of plugs, the only way I would choose the higher cost ones is due to dufficulty in changing them.In other words, why would I pay $18.00 for two iridium plugs, when I can get 4 v-groove NGKs $9.00 and change them every two years and do the job myself in under ten minutes. If it were a Ford where it can take up to 3hrs to change the plugs, certainly not a job I would want to do as often and so I would spend the extra money to have longer lasting plugs.There really is no difference in milage or horsepower.

check with NGK. contact them through their contact service and maybe they'll be able to tell you.www.ngksparkplugs.com