[scotteric]

When it rains after being dry for some time an oil layer forms on top of the water. This is why he is afraid of skidding. In Southern California, where it is very dry there can be very substantial oil buildup.

[Gordonjcp]

You get that a little bit here, but not enough to make a real difference.

I guess we also have laws about keeping cars in good condition with decent tyres and stuff.