Sparkplugs quickie question.
#1
Senior Member
Thread Starter
Sparkplugs quickie question.
When you say "NGK 9's" do you mean heatrange 9?
Also read my other post alittle further down plz and see if you can help me out with that.
Also read my other post alittle further down plz and see if you can help me out with that.
#2
Senior Member
yep.... Typically, Mazda recommends 7's and 9's for leading and trailing.... However, that's for US cars... not sure what's recommended for Europe. Anyway, Most owners tend to run either 9's symetrically or 10's if they're running high boost.
Thread
Thread Starter
Forum
Replies
Last Post