Quote Originally Posted by DOSALOGA View Post
MY AVEOS 2010 SEDAN 1.6 (103HP) THE OWNER´S MANUAL INDICATE PROPER -STOCK- IS NGK SPARK PLUG NUMBER BKR6E (calibration1.0 to 1.1 mm). I REPLACE WITH BKR15E AND WORK PERFECTLY. SOMETIME I PUT AUTOLITE IRIDIUM BUT I BEEN HAD PROBLEMS TO COLD START.
BKR15E is a much colder plug. With NGK, the higher the #, the colder the plug and vice versa, but for most other mfgs, the higher the #, the hotter the plug. If you get fouling come winter or notice alot of carbon building up, go to a hotter (lower # BKR#E) plug. The rest of the letters should be the same as they describe the length, thread size, and electrode specs.