The 2006 Toyota Sienna has 24 valves.
The 2006 Toyota Sienna's engine produces 215 hp @ 5600 rpm.
The gas tank on the 2006 Toyota Sienna holds 20 gal..
The Toyota Sienna typically has two axles. It is a front-wheel-drive minivan, which means it has one axle in the front for the drive wheels and another axle in the rear. All-wheel-drive versions also feature a rear axle to provide power to the back wheels.
Every 5000 miles, is when I do it on mine.
The 2014 Toyota Sienna has 24 valves.
The 2013 Toyota Sienna has 24 valves.
The 2010 Toyota Sienna has 24 valves.
The 2005 Toyota Sienna has 24 valves.
The 2007 Toyota Sienna has 24 valves.
The 2002 Toyota Sienna has 24 valves.
The 2003 Toyota Sienna has 24 valves.