oil burning

Hey guys so I am having a problem with the qr25de in a 02 spec v. The car went from burning next to no oil between changes (3-4k miles royal purple)(40k miles on engine) to burning a quart in of oil in a 20mile commute across town. It started to burn oil practically over night and a...

Ok so I've decided to not give up on my sentra and I am going to put a new engine as my cat broke up and got sucked in. Current Status : I am burning oil but it turns on fine and runs. I live in Miami so i need help getting a brand new engine or should I say a used one. I have a 2002 Nissan...