The plugs that I have in the car now are Bosch Platinum 2, and I *think* I put them in when the car had 60-70k miles on it. The car has 108k miles currently.
So the Bosch have about 45k miles on them.
I bought a set of Champion "Double Platinum Power" 7034 for about $3.50
a plug. They look practically identical to the original plugs the car
came with from the factory (Champion RC12PEC5) but the tip or point
might be a little more pointed. The Champion plugs have a slightly
longer reach than the Bosch - by about 1/4 inch.
I don't have any feeler-guages larger than .035 inch, and the champions
seem to have a larger gap - possibly .050.
Has anyone ever gapped these?
Did you use .050?
I don't have any particular reason to replace the Bosch other than age /
milage. They have a very different design compared to the traditional
Champions, but I really don't know how to tell if they're near the end
of their life, or in the middle, etc.
- posted 7 years ago