EfiniX
Well-known member
It's been suggested that I change plugs every ~6k mi. or so. This recommendation came after a discussion regarding tuning I've been doing and some knock I was getting in 4th gear. I was at about 7,500 mi. at the time, so I figured I would swap them with my next oil change. Here's what I found:
BR7ES
I would add that the next feeler size up was 0.036", and the 0.032" in the picture had a touch of wiggle, so my actual gap was probably more like 0.034". The electrode itself looked healthy and the plug overall was in good shape. That gap, though... It was at 0.026" when it went in the car.
This is with fairly vanilla driving. No racing and only a handful of non-tuning WOT pulls.
I'd say this is a pretty good endorsement for every ~6k mi.
BR7ES
I would add that the next feeler size up was 0.036", and the 0.032" in the picture had a touch of wiggle, so my actual gap was probably more like 0.034". The electrode itself looked healthy and the plug overall was in good shape. That gap, though... It was at 0.026" when it went in the car.
This is with fairly vanilla driving. No racing and only a handful of non-tuning WOT pulls.
I'd say this is a pretty good endorsement for every ~6k mi.