Quote Originally Posted by mikibabs View Post
boss s10pao, na check ko na yung gap and lahat sila exactly the same yung gap distance, as i've read, iridium sparkplugs are usually used in performance cars and meron ako nakausap na autoparts/car enthusiast na gamit nila sa drag racing iridium sparkplug because it gives a bit more power. another factor na naisip ko dahil sa e10 fuel, nung na achieve ko yung 19km/L wala pa yung e10 dito sa western visayas and yung sparkplug ko that time ay yung standard na denso for avanza. when i changed to iridium sparkplug lahat na gas station dito ay may halo na ng e10, dun na nagstart na notice ko there is a drop in fuel economy. so i think yung dalawang factor yung nag contribute sa drop in fuel economy.
ung gap kasi may recommended range yan. at minsan kailangan mo rin paglaruan ung gap (within the recommended range) na hiyang dun sa engine mo (fine tuning). na-check mo na rin ba kung tama ung heat range? can you tell us the model of the iridium spark plugs used? sa next pms/check-up mo tingnan mo condition nung spark plugs without being cleaned. i-compare mo sya dito

Spark Plug Diagnosis


may mga spark plugs naman talaga na high-performance intended for racing. pero hinde naman exclusive na pang racing or high-performance ang iridium spark plugs. hindi ilalagay ng honda sa jazz units nila ang iridium spark plugs kung makakalakas ito sa fuel consumption. possible na ung transition to e10 ang isa sa contributing factos kung bakit lumakas ang fuel consumption pero tingin ko hinde dapat ganun ka drastic. again i suggest na ipa-check mo ung engine mo at iba pang components nung car mo kung bakit ganyan kalaki ung increase sa fuel consumption. marami kasing factors ang nakaka-affect sa fuel economy. examples are wheel alignment, engine oil, drivning habits and conditions, and engine condition itself. ung increase in fuel consumption, especially sa case mo na sobrang drastic, is a sign na may problema. hopefully, hinde lang talaga hiyang ung car mo sa iridium spark plugs.