i have a 02 tl with 99 k when should i replace my factory plugs,second questions when changing my antifreeze does it matters what brand i use

 

i wold change teh plugs now. id get the oem ones. NGK iridium. the densos are great but only last 40k or so.

dont use teh bosch

 

are the OEM's NGK?

 

OEM's installed at the factory are either NGK or Denso Platinum. They are designed for longer life. Up too 100k miles. The preferred Plugs on the forum are NGK Iridium. Don't last as long but should perform just a bit better than Platinum

 

Good time to change the plugs. Go with the ngk iridium's. As for the coolant use pre-mixed 50/50. Your going to need about 1 1/2 gallons.

 

Yes ngk is oem for the TL. Actually honda only uses ngk on all there cars.

 

are the spark plugs a DIY JOB

 

Very easy