2017 Fusion - Replaced NGK plugs-Issues

[tig1]

This is in my 2017 Ford fusion. For several months I have noticed a stumble on cold starts and slightly lower MPG. So I replaced the NGKs with Auto lite iridium XP plugs. The NGKs had 100k on them and the gap increased to .075 from ,054. I'm going to check one after 25k to see how their doing. The cold start issue is now gone FYI.

 

[martinq]

What number was the NGK plug?

 

[Elroy the Brave]

Sounds like you fixed the problem.

 

[tig1]

What number was the NGK

NGK LTR51X-11

 

[tig1]

Sounds like you fixed the problem.

Truly. The plug gap was the problem.