The Structure (Physical Description) of cartilage tissue in general. Cartilage is a connective tissue consisting of a dense matrix of collagen fibres and elastic fibres embedded in a rubbery ground substance. The matrix is produced by cells called chondroblasts, which become embedded in the matrix as chondrocytes. That is, mature cartilage cells are called chondrocytes.
Scion lists its oil requirement as 5w20 for normal climates. If you live in a colder climate, use an oil with a lower viscosity, such as 5w10. This thinner oil will move through your engine more quickly when you attempt to start in cold weather.
Update: I drive a 2005 Scion tC. It has a 12.5 gallon tank. It gets 30 mpg highway and 23 mpg city. My light came on this morning on the way to work and I'm wondering how much further I can go without getting gas. I drive about 10-13 miles to work.