Probably because of the climate the vehicle is driven in.
The 2002 Toyota Highlander's engine produces 163 ft-lbs. @ 4000 rpm.
Around $170.00
Check door jambs or fuel fill door - should be a label telling you how much
Full gas tank capacity is 19.2 US Gallons. You do the math.
The 2003 Toyota Highlander's engine produces 163 ft-lbs. @ 4000 rpm.
The 2006 Toyota Highlander's engine produces 222 ft-lbs. @ 3600 rpm.
The 2009 Toyota Highlander's engine produces 186 ft-lbs. @ 4100 rpm.
The 2010 Toyota Highlander's engine produces 186 ft-lbs. @ 4100 rpm.
The 2011 Toyota Highlander's engine produces 186 ft-lbs. @ 4100 rpm.
The 2012 Toyota Highlander's engine produces 186 ft-lbs. @ 4100 rpm.
The 2013 Toyota Highlander's engine produces 186 ft-lbs. @ 4100 rpm.
The 2008 Toyota Highlander's engine produces 248 ft-lbs. @ 4700 rpm.