Ok......is it really true that my 98 Blazer can go 100k miles on the original spark plugs? Seems a bit far fetched.
It now has 70k miles and has lost about 2 mpg since new. I want to tune it up and that includes the plugs....but of course.....they are under 100k so they must be fine right?
Thoughts?
It now has 70k miles and has lost about 2 mpg since new. I want to tune it up and that includes the plugs....but of course.....they are under 100k so they must be fine right?
Thoughts?