Owner reviews for spark plug

I use brisk standard temperature. Work great

I would stick with the specd Denso, leave the coils alone.

Ngk plugs would be perfectly fine but there's nothing wrong with motorcrafts either.

Spark plugs, coolant exchange, transmission drain/fill, brake fluid flush, and air filter replacement, stat.

After taking out the plugs they were brown all 4 cyls I replaced them with NGK lasers and wow my car was so much more responsive and it would ride through every gear through high rpm without power cuts or jittering.

If you are having misfires under load, the first check is always ignition, i.e. spark plugs and coils (only factory coils and factory or NGK plugs in my experience).

Went with NGK spark plugs that was bundled with some generic wires and coils, not ideal but it’s all I could afford at the moment

That price at 63.5k miles isn't bad imo. I spent roughly that same amount for my 2017 back in 2019 with around 40k miles (64k km). What's the service history look like? Have spark plugs been replaced, belts checked, engine oil changed at least 10-12 times by now? How are the pads and rotors?

I bought a NGK №6 4-pack for 20$ at local parts shop, After the replacement, engine problems began: loss of power, misfires, and severe vibration.

struggling to home diagnose what’s wrong with my 2015 Honda Fit (around 160k miles). Worked fine 2 days ago when I last used it, Went to turn it on this morning and it sputtered then stopped. Red oil light came on, red battery light, and orange power steering light showed on dash. Brake pedal locked up. We changed the oil, checked battery life (at 70%), replaced spark plugs and alternator coils (needed new ones anyways), and it’s STILL not starting.