Reply To: Random misfire on Acura – and seems mysterious

[ms2000]

At 80k, I upgraded to Platinum NGK spark. No issues. At 144k, replaced with new Platinum NGK spark.
Could this be causing it?

Also, this time, I put 5 gals of 91 gas + 7 gal of 87 gas. I have always used 87 gas only as recommended by the Honda. Hope this is not causing it.