I have a 2010 fiesta zetec s with a mountune 155 bhp ...

Question

I have a 2010 fiesta zetec s with a mountune 155 bhp engine conversion, the plugs are ngk TR5B-13 and are due for renewal what is the best plug gap for my engine, some say 1.0mm others say 1.3mm, thanks.


Answer

our records say 1.3 mm

Asked on 20 Jul 2015


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