Hello all. Just wondering what are some good spark plugs out there that could save me some gas? or something.

 

Any new plugs will improve mileage but one most important thing that people don't do is to change the plug wires. Regardless, Bosch is what I run and they are pretty fine. Ones with hair-thin ground electrode are way better than conventional ones but have less life. For best fuel consumption and added power you want the thin electrode.

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Okay, thanks a lot.

 

i may look into this as well.

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~2004 Mazda3 Sport GT~