Inside the gas tank.
The 2005 Buick LaCrosse runs on regular unleaded.
At the rear f the vehicle, between the frame rails.
The 2008 Buick LaCrosse runs on regular unleaded.
The 2014 Buick LaCrosse runs on regular unleaded.
The 2007 Buick LaCrosse runs on regular unleaded.
The 2006 Buick LaCrosse runs on regular unleaded.
The 2009 Buick LaCrosse runs on regular unleaded.
The 2012 Buick LaCrosse runs on regular unleaded.
The 2013 Buick LaCrosse runs on regular unleaded.
The 2010 Buick LaCrosse runs on regular unleaded.
The 2011 Buick LaCrosse runs on regular unleaded.
fuel tank