Automobiles & Vehicles Deals recommendations and related topics
Brake Drum:
The basis of a drum brake system. It is a circular metal component that rotates with the road wheel. A set of brake shoes that are fixed in position and act on the drum by expanding. API Donut :
A symbol introduced by API in 1983 to be placed on motor oil containers. This symbol was designed to benefit the consumer by placing all the necessary information (i.e., API Service Categories, SAE Viscosity Grade) in one location, serving to consolidate motor oil quality and performance information.