I replaced my spark plugs about 3 or 4 months a go, and they were pretty dirty. especially the number 8 and 5(i think). now the car is showing symptoms of bad spark plugs again. its only been 4 months and you all know how hard it is to change plugs on these cars( it took me a period of 2 day to do it last time). it burns a little oil but spark plugs have lasted a lot longer before. could this problem be caused by not a hot enough spark, maybe from bad wires, alternator, or coil. everyting is stock except an accel coil.

 

yep a weak spark will cause deposits to form on plugs making them become inefficent and weak maybe it's time to check and make sure your tune up is good