rspec99
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- Thread starter
- #1
I decided to pull my spark plugs out for inspection on my 2016 GT350. There was no spec quoted in the owner's manual or the supplement. When I measured my gaps, they were in the .050" range, which is about what the 5.0's spec is. Otherwise, the plugs seemed to read well as in dry, brownish/black, with no deposits. I am running oil separators, and my engine doesn't burn oil.
However, when I checked the 2019 GT350 owner's supplement, it states .035"-.039" for the spark plug gap spec. I replaced my stock plugs with NGK's and decided to gap them to the .037". Prior to replacing the plugs, my car would occasionally have a miss or hiccup at idle. After the new plugs and smaller plug gap, it idles smoothly and no miss. There is no other perceptible change in drivability or performance.
Just curious about others in the communities experience.
However, when I checked the 2019 GT350 owner's supplement, it states .035"-.039" for the spark plug gap spec. I replaced my stock plugs with NGK's and decided to gap them to the .037". Prior to replacing the plugs, my car would occasionally have a miss or hiccup at idle. After the new plugs and smaller plug gap, it idles smoothly and no miss. There is no other perceptible change in drivability or performance.
Just curious about others in the communities experience.
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