Engine Warm-up Cycle

{
  "id": "MLC-T-ENV-009628",
  "term": "Engine Warm-up Cycle",
  "field": "Environment",
  "definition": "1. Sufficient vehicle operation such that the coolant temperature has risen by at least 40 °F from engine starting and reaches a minimum temperature of 160 °F.\n\n2. Sufficient vehicle operation such that the coolant temperature has risen by at least 40 deg. F from engine starting and reaches a minimum temperature of 160 deg. F.",
  "subject": "Research",
  "references": [
    "40 CFR 86.094-2 (CFR 2018)",
    "40 CFR 86.1803-01 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/engine-warm-up-cycle/"
}