Originally Posted By: Al
I remember when Nissan engines were considered some of the best. Their 6 is still in that class.
Their QR and QG series are absolute junk. The SR20DE series was their really last standout 4 cyl.
QR is not Junk. They had their early issues, but bugs were ironed out by 2007. My moms 07 QR Altima has been flawless for 140k. 140k is hardly worth mentioning, but I doubt the engine will have a major issues anytime soon.
Altimas have a pretty good reliability record. They sell over 300,000 a year with 90% being QR powered. If they were that bad you would definitely hear abut it.