I have a 2001 chevy tracker l4 2.0 ... I am curious as to what brand would/type of spark plug would work best in this engine.

I read on a different forum site for a different vehicle that NGK Iridium spark plugs are the best you can buy for the other vehicle I have. I also read that the E3 spark plugs were not good for my other vehicle...

So I came here to ask what brand and what type (copper, irdium,,,) spark plug would work best for the engine.

Thanks in advance

 

Good day. This is my first post. Hope I'll prove useful.

Copper, iridium and platinum are 3 common types of spark plugs. The more I do research, the more I convince myself they only differ in their life span.

In the Tracker, I use copper spark plugs. The ones I use are NGK BKR5E-11. They have the same dimensions and properties as those called by the user manual.
I replace them every 10,000 miles, and they come out in great condition. With Iridium I know could go over 25000, or even more, but it doesn't justify paying 4x the price. Also, the plugs in this engine are easily changed: 15-25 minutes and the job is done. (provided nothing goes wrong)

My brother's car is a Nissan Frontier, with a V6 engine. To replace the plugs, you have to dismantle a lot of stuff. The coils wires are way to short and hard to manipulate, and the spark plugs are hidden in the yeti's cave. To make things worse, I recall the shop manual indicated that after all is done, you have to test the throttle pedal (electronic, by the way) for proper operation, because... stuff happens. There was a 2 page section dedicated to re-calibrate the pedal in case it ceased to function propetly. In this car, we used Platinum spark plugs, so we can avoid all the hassle for a long time.

Same goes with my bike. It uses 4 hard to reach spark plugs. Replacing them was a PITA. Iridium in this case, and they'll stay there until they are 36,000 miles old.

NGK's website contains a lot of useful info. It takes a couple of minutes to read.