How long do NGK 3333's usually last in a Supra? I am just wondering because I know they are made of copper. I've been told they last about 5-7K miles. Any input would be appreciated.
John,RSP TRD TT said:I've been told to replace bpu plugs (like 3330's) with every oil change.
BTW - Guilly turned me onto another plug. I found it a bit hard to believe at first, but several of my friends and I have tried them and they are great! AC Delco (AutoLite) non-rapid fire plugs for the Supra. They're a buck each and do a great job. Guilly knows his stuff.