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I own a 2006 Toyota Highlander and the oil change is recommended every 5,000 miles or every 6 months whichever comes first.
The fuel injectors on a 2007 Toyota Highlander are recommended to be changed every 60,000 miles.
At 100,000 miles.
The Toyota Highlander averages about 28 miles per galllon but differs depending on state and year it was made in because there are 195 different Toyota Highlanders.
The EPA range estimate for the 2006 Toyota Highlander is 324.7 mi. in the city, 439.3 mi. on the highway.
The EPA range estimate for the 2014 Toyota Highlander is 384.0 mi. in the city, 480.0 mi. on the highway.
The EPA range estimate for the 2009 Toyota Highlander is 384.0 mi. in the city, 518.4 mi. on the highway.
The EPA range estimate for the 2007 Toyota Highlander is 362.9 mi. in the city, 477.5 mi. on the highway.
The EPA range estimate for the 2008 Toyota Highlander is 345.6 mi. in the city, 460.8 mi. on the highway.
The EPA range estimate for the 2004 Toyota Highlander is 362.9 mi. in the city, 477.5 mi. on the highway.
The EPA range estimate for the 2003 Toyota Highlander is 376.2 mi. in the city, 495.0 mi. on the highway.
The EPA range estimate for the 2012 Toyota Highlander is 384.0 mi. in the city, 480.0 mi. on the highway.