NKG vs BOSCH spark plugs - BMW Forum

lsatdown · 07-13-2006, 05:05 AM

Hello,
bmw 318i 1994
A few months ago i replaced my spark plugs with NKG ones, since then i get a slight hesitation now a again when driving, but not idling.
Could this be from the spark plugs?

I bought some Bosch super plugs the other day, as a garage recommend that i change them due to the cheap spark plugs don't have the right charge or something?

Furious · 07-13-2006, 07:17 AM

NGK are great plugs, very compareable to bosch. i cant say for sure what the problem your having is, but its possible that the plugs you got were maybe the wrong ones.

polaris448 · 07-13-2006, 11:40 PM

that hesitation could be due to a plug wrie going bad...does your check engine light come on? but then again being obdI it might not detect a misfire...hey everyone else does obdI detect a misfire and if so does it tell your which cylinder? i have been told that the only huge difference in plugs is the amount of heat they produce and that would be with different plugs that are probably not designed for your car. i think if there is a good strong spark then any plug will work fine and the only difference in plugs would be how long they last. platinum = 60k non platinum = 30k