API donuts

A form of API donut — An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP).

Meanings

noun
  1. pluralplural of API donut
Cite this entry
APA

API donuts. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/API%20donuts

MLA

“API donuts.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/API%20donuts. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “API donuts,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/API%20donuts.

Source: API donuts on Wiktionary, CC BY-SA 4.0.