H, whats the correct grade of plug for the 1.8 Zetec, mine has NGK PTR5A - 10's in, all I can find is PTR5A - 13, are these equivallent?

Manual only specifies Bosch HR7 mpp+v for the 1.8 & 2.0L different ones for the smaller engine, suppliers state the same plug for all engines...

What happened to the old N9Y......

[Edited on 8/11/08 by r1_pete]

PTR5A-10 from memory. The 10 is the plug gap, 1mm. PTR5A-13 is 1.3mm.

adrian

I got some new "old stock" off Ebay for £5 or £6 last year.

Same here, i bought some NOS on ebay for less than i can buy them trade (delivered too) PTR5A-10