What's the deal with champion?

Well no more E3s lol. I got Autolites because that's the only one they had enough of in stock for me to change the plugs today. The Autolites are OK but the dumb thing is that the tip comes off and has threads :P I will remove the washers in the morning.
Autolites are American made... or at least they "say" they are...also owned by Honeywell (AKA Fram). Had I known I would've gone with BOSCH.

I had the Champion RN12YCs in the 6 before and each has a different gap, the electrodes were rusty brown, one was reddish, and I'm not sure but I think they showed signs of detonation.

I have no idea what the previous owners ran the 6 on but I use mid-grade (89) and "Gunk" lead-substitute.