what colour should the plugs be ,mine are black on the outside with dark red core does octane booster make it go a redish colour and is this ok . thanx (93 wrx)

 

Mark, thats the sign of octain ok. Red/orange is normal.

Dan

 

thanx danny

 

Mine out of my MY00....after 15000 miles (from new if that makes any difference)

Replaced them with DENSO's....and been very pleased to date.


(edited cos the picture was HUGE)

[This message has been edited by Houlbt (edited 25 August 2001).]