Quote:
|
Originally Posted by manny
I have posted this before, but will do so one more time.
My car ( see sign. below ) came with Bosch F-7 KTCR plugs.
These are triple electrode, resistor plugs.
I change them every 30 k miles ( manual suggests to go twice as far ).
What the heck, there is only 4 to change anyway.  |
Your car has a different ignition system than M102/103 engines. If the OEM installs multielectode/resistor type plugs, then the ignition system was designed for them. As a rule, later cars have more powerful igntion systems with more per spark energy. This is especailly true for "direct" systems that have a coil for each spark plug.
The best and safest bet in the vast majority of cases is to use the OE or an OE equivalent plug.
It doesn't take too long in the archives to realize that this is very true for the M102/103 vintage cars, and if you use something other than the non-resistor OE type plug, for which Bosch is the only readily available choice, there's a good change you will have some ignition related problems, although the average owner may not recognize igntion related problems. It's only after we harange them to install the OE type non-resistor Bosch plugs that the problems miraculously goes away.
Duke