Ok, so I have had assorted NGK plugs in my car and I fianlly went and got the correct ones for my 99 Si. The part number it called for in the manual was for a platinum plug. I have heard that you aren't supposed to spray on Platinum plugs. Something about the platinum melting while on the bottle. Is this true? Or should I not worry about it.

In my searches all I found were the BEST NGK plugs to spray on, not whether or not I could spray on mine.

 

just get some bkr7e's and be done with it
$1.09 apiece

 

yup 7 heat range should do, the only advantage to platinum is that they last longer.

 

platinum is junk
plain and simple

**** some iridium **** too

 

DONT DO IT

platinum on fi or sprayed cars equal misfiring, detonation and overall shittyness, my buddy's gst gained 17 hp at the wheels just by changing to good ol copper plugs

 

Yeah I was always under the impression that platinum was junk too, but I have also read all over the place that the stock NGK's are the best for your car. The stock plugs are platinum! So, any suggestions on which plug I should run normally? or should I run the 7's all the time? Should I close the gap for daily driving?

 

Platinum is junk with n2o. I exploded all the electrodes when I was on nitrous. Simple change of the plugs and no more problem.