a standard spark plug should last 10-20K KM...those better/performance type should last 30-50KM....
Spark plug is wear and tear part...
Also life span of spark plug depend on your engine condition...if your engine makan engine oil / wrong tuning then your spark plug will wear out faster.
Hi I am new here, I have a 2002 SAAB Aero that I believe has a TD04HL turbine?
The engine code is B235R, I THINK the part number for the Turbo is 49189-01800 but not sure, the turbo is dying, lots of carbon around...