I live out here in Phoenix az were its hot as a mf. I have an 02 xx that I bought brand new and it currently has just under 10000 miles. I use it to commute ever day to work. I have always ridden with ear plugs for as long as I have been riding, well I forgot my buds a few weeks ago and I noticed that I have alot of pinging. I run 87 octane and my temp has not gone over 232, although even on a freeway cruise in this hot mf weather it sits at about 210. I notice that it pings on normal acceleration and does not ping on wot. I just put 91 octane in it and will see what happens, but It should not be pinging with 87?