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View Full Version : Spark plugs for 2.3L4 TR5IX vs. TR6IX


neo3639
03-29-2009, 01:45 PM
Hi,

I've got a question, my car originally runs with ITR5F13 spark plugs, can I replace them with TR6IX? I know 6 is colder than 5, but what really will be affected if I use TR6IX?

Thanks!!
Malcolm991
03-29-2009, 02:31 PM
How much mileage do you have!
cinder88
04-07-2009, 03:02 PM
according to NGK's site - TR6IX IS the recommended plug for the 2.3 engine ?
Walrus
04-07-2009, 03:22 PM
I think early 2004s came with 5's, and were later changed to 6's.
MajesticBlueNTO
04-07-2009, 03:52 PM
Hi,

I've got a question, my car originally runs with ITR5F13 spark plugs, can I replace them with TR6IX? I know 6 is colder than 5, but what really will be affected if I use TR6IX?

Thanks!!

check this post (http://torontomazda3.com/forum/showpost.php?p=155663&postcount=5) for more info

yes, you can replace it with the TR6IX but note that, if your car is a 2004, the gap of the TR6IX is outside of the range shown in the service manual (by 1/100 of an inch).