Tin worm attack ...
AO Gold Member
Join Date: Jan 2003
Location: United Kingdom
If you've had the car three years, what's the oil consumption been like? Has it suddenly increased or has it always been high?
Also the overheating will not help you oil consumption. Sort out the rad (7 years old? definitely cream-crackered), then check the oil again.
But running the engine hot can cause more damage so get it sorted quickly. You risk head gasket damage, rings, bearing shells, etc by running constantly too hot.