Automobiles & Vehicles Deals recommendations and related topics
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. Atmospheric Pressure :
The pressure on the Earth's surface caused by the weight of the air in the atmosphere. At sea level, this pressure is 14.7 psi at 32OF (101 kPa at O"C).