It calls for 5W-30 conventional motor oil but in a warm climate you could use 10W-30.
The 2005 Toyota Highlander runs on regular unleaded.
10w30
The 2004 Toyota Highlander runs on regular unleaded.
The 2011 Toyota Highlander runs on regular unleaded.
The 2008 Toyota Highlander runs on regular unleaded.
The 2014 Toyota Highlander runs on regular unleaded.
The 2003 Toyota Highlander runs on regular unleaded.
The 2007 Toyota Highlander runs on regular unleaded.
The 2009 Toyota Highlander runs on regular unleaded.
The 2012 Toyota Highlander runs on regular unleaded.
The 2002 Toyota Highlander runs on regular unleaded.
The 2013 Toyota Highlander runs on regular unleaded.