Yeah I know av gas will and the burned oil, you'd expect to get still a good few hundred km, I my self run 75% pump and a tad mix of av gas, I'm not sure what the heck is going on for me, 3 sensors, my first sensor I ran for a good 1000 km and became lazy, 2nd one I thought was reading funny, after 3 rides, put in my newest one, 2nd last ride, it lasted 15 km then wanted to read lean under lighter throttle but when boost came in it read ok. my last ride it read either super lean 18:1+ or super rich 10:1, weird thing was at idle it read OK, under boost or was super lazy, took about 3 seconds before it came down to the a/f. Mean while the sleds not running odd or lean like, no back fires, boost is good (haven't touched my box or settings) leads me to believe something funky is going on! Maybe 2 bad sensors? I called aem, he said well it shoulda like your sensors working... And the gauge must be too... But said my location probably is the issue. I'm thinking for the hell of it to movie it to straight up and before the bend, also raise it up so it doesn't protrude as much, just enough for the sensor holes.