My wife and I are buying our first house so money is going to be real tight. I have an 08 Jeep Wrangler Unlimited right now but am seriously thinking about selling it and getting a Scion XB. I sat in one and felt it had just as much room as my jeep does. It would lower my car payments by a good amount and I'd also spend less on gas and maintnance costs every month. Anyways, i was wondering, are there any known problems with the 2.4 engine in these? I know toyota had some engines that were known to sludge up real easy, is this one of them?