My IS250 with 100k was in the
My IS250 with 100k was in the shop for a month...having the same issue, with oil consumption and misfire. I had two(2) oil consumption tests when it was still under warranty, but the misfire happened 1 month after the warranty expired and now they will not fix it. The only fix they did was a top engine cleaning, which is not going to fix the issue, if just makes it go away until the carbon builds up again. I would like to stay in contact and pursue a Class Action Lawsuit myself.