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.
For as much as Scion projects a counterculture image, the tC is pretty much a by-the-numbers coupe, and based on our tester, not a very good one. We can only hope the car Scion sent us is not representative of all tCs, because our tester was a mess. Ignoring superficial nits like the trashed paint, missing engine cover, and ill-fitting glovebox, the tC was plagued with driveability issues.