Spark plug NGK or OEM Mazda

I buy parts from them for my Volvo. Even with the cost of freight , it's miles cheaper.

I've recommended many times to toss plugs and replace with NGK (you can read about my experience in prior post). You have hopefully educated newbs to follow you.

Same with me and NGK replacing Torch plug.

Here\u2019s where I\u2019m at after about a year of ownership. A few of these were just cosmetic fixes. I\u2019m at ~$540 total. Spark plugs, replaced with NGK BPR6ES - $20.00

Look good …. Just try to get denso or ngk

Switching fixed my ignition issues after having Autolite for only 2 days after purchase switched them to NGK and resolved my issues

Just swapped all four plugs in my 2013 Kia optima EX 2.4l for ngk iridium’s, still had the original sensor plugs in at 91k so honestly not sure how I didn’t have any misfires but have had a rough idle

They are very picky with their spark plugs so you are limited to NGK which is oem.

We bought a 2015 Mazda CX-5 that has 155K miles on it. Plugs never changed by prior owner. It was giving us **26 MPG**. The engine was rough at idle. So I read and read about Spark Plugs and purchased NGK LKAR7AHX-S Spark Plug NGK Ruthenium HX Spark Plug that this is better then the OEM ILKAR7L11. So we installed the HX, we noticed the engine smoother but the MPG dropped down to **24 MPG consistently.

Beware the spark plugs they sell are factory seconds I had top of the line ngk plug fail after only about 7500 miles