Reporting Safety Defects
Jeep Wrangler / Jeep Wrangler Owner's Manual / If You Need Consumer Assistance / Reporting Safety Defects
See also:
Engine
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Fluid Capacities
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Extreme Cold Weather (Below –20°F Or –29°C)
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater (available
from your authorized dealer) is recommended. ...