bkr5e-11 or bkr6e-11?

[mazdamazda]

what is the effect of "cold" or "hot" plugs? any effects on performance? my manual recommends BKR6E but then it also recommends the use of 0W30 oil... :P

for the 323, you either have the option of using the bkr5e (hot) or bkr6e (cold).

basically, the 5 is more suitable for city driving (lower temperature / engine speed). while the 6 is for higher temperature / engine speed.

colder plugs (the 6) will give you a better fuel economy - though it has a higher tendecy to foul up (if you don't 'exercise' your engine often).

[babymim]

mazdamazda why do colder plugs give better fuel economy?
i do long drives(25-30 km) occasionally, are the bkr5's gonna be fine?
san ba makabili ng torque wrench?

[Engr]

pwede ko ba lagyan ng bkr5e-11 yung auto ko na ang stock plugs ay bk5e-11?

what's with the 'resistor'?

[astinagt]

-11 is for car with catalytic converter..

[speedyfix]

no need to torque plugs. hand tighten lang.

[vinj]

-11 is for car with catalytic converter..

Thanks!