4 liters is a lot of oil to be going through in a month, even if you drive a lot.
You say you changed the piston rings,if so did you have the block bored/honed?
Are there any visible leaks?
First thing i would do, is spend 65 bucks and get a compression and leakdown test to see whats going on.
You say you changed the piston rings,if so did you have the block bored/honed?
Are there any visible leaks?
First thing i would do, is spend 65 bucks and get a compression and leakdown test to see whats going on.