I'm staying away from mohawk/husky 94
ethanol has its cons
when I was in montana
a lot of places were advertising premium without ethanol
I only fill up @ shell now
odd time @ esso
I'm running iridium no issues with plugs
going back to CU copper core would b a step backwards IMO
I ran a tank of 94 from husky & it t threw O2 codes
that's when I changed plugs
I like jake d 's idea if u have coil/wire problem
but I would do plugs 1st
Chris
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Living one calculated risk @ a time
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