[geeboss]

QK20 = $20 OFF >$50 PURCHASE -- ADVANCED AUTO PARTS -- 4 SPARK PLUGS 3811--ILTR5A-13G till Sat evening

 

[geeboss]

2010wolf, fyi If your car's throttle body has not been cleaned...you might want to check it. When you disconnected the battery the ecu relearns the fuel trims and one unfortunate thing is that it thinks your car's throttle body is clean. This can cause rough idle.

 

[geeboss]

My 2011 Mazda 3S 2.5L uses the NKG 3811-ILTR5A-13G or the newer NKG 4344 -LTR5IX-11 Iridium IX Spark Plug and also NKG 90083 - LTR5BI-13 Laser Iridium Spark Plug. The 3811 last much longer (75k to 100k) then the Newer 4344 (45k to 65k). However the 4344 is less costly.by using P20 code at advanced auto i.e. $25.57 plus tax for 4 plugs.