2008 Subaru Outback 2.5 non-turbo, 186,500 miles, 1 quart every 2000 miles.
2003 Dodge Ram2500, 5.9 Cummins Diesel, 187,000 miles, no measurable consumption.
2001 Mazda Miata, no oil burning.
1992 Toyota Pickup, 22RE, 321,000 miles, no oil consumption between 3-4K mile OCI.