MattWilde 10 Posted April 9, 2007 A bought a set of spark plugs from my local bosch dealer and he gave me a set of bosch platinum WR6DP, when I went to change them the plugs in my car are WR6DPO. Is the 'O' bit important or are the plugs I've been given alright for the job? Thanks in advance Quote Share this post Link to post Share on other sites
flusted 0 Posted April 9, 2007 dpos are whats ment to be in there but unsure what the o means Quote Share this post Link to post Share on other sites
MattWilde 10 Posted April 9, 2007 thought so, a bit of searcing shows that the O means the plug is modified from normal, so back to the shop it seems. Thanks again Quote Share this post Link to post Share on other sites
