What type of oil for a 2004 Scion xb with 55000 miles?

Why the drive shaft vibrates on a ford van E-150? What is the function of hub in clutch? Does silicon spray lubricant hurt serpentine belts when sprayed on pulleys? How do you change the fuel filter on a 1997 F-150? How many quarts of oil does a road-ranger transmission hold? What do you do first tire alignment or wheel balancing? What does it mean when you try to crank your vehicle and it clicks? Where is the fuse for the shifter on a 2007 Chrysler 300? Where is oil filter on transit connect located? What are the constituents of fuel? Does adding Teflon additives in oil actually work for resealing the piston cylinder walls in the engine? Can dropping a motorcycle battery ruin it? Can you damage lawn mower engine with wrong spark plus gap setting? How do you disable alarm on armitron m0935? Is there any automobile engine which runs without carburetor? What is the ratio of water to acid in car batterys? Why is your transmission slipping on a 2003 Chevy Tahoe at 76000 miles? What color is fork oil? Can you buy a set of tires in us and bring to Canada? Where can you find a diagram for a cub cadet LT 1045 drive belt?

What type of oil for a 2004 Scion xb with 55000 miles?