Related Clues:

• They might squeal
• Dragster's slicks
• Is ready to rest
• Some whiskey drinks
• Goes bad, as milk
• Becomes weary
• The wheels on the bus, e.g.
• Saturn's four
• Rim attachments
• Stops liking, with 'on'
• Some spares at the chop shop
• Semi's 18
• Rotated car parts
• Firestone products
• Road rollers