Scion xB excessive oil consumption issue at one quart every 1,000 miles on Scion xB

Some Scion xB owners report experiencing excessive oil consumption, with some models requiring the addition of about one quart of oil every 1,000 miles. This issue may stem from infrequent oil changes that lead to engine sludge or worn piston rings. Reports vary among owners, with some vehicles consuming a quart in 1,000 miles or even half a quart in 3,000 miles. While not all Scion xB models are affected, specific years, particularly 2008-2011 and a few 2012 models, are more susceptible to these problems. In some instances, owners have found success in reducing oil consumption by using products like AT-205. Additionally, warranty enhancements have been offered for certain model years to address the excessive oil consumption concern.