FORD 2014 Explorer v.2 - Manual (Page 328)

Coolant expands when it is hot. The level may extend beyond the COLD
FILL RANGE.
If the level is below the COLD FILL RANGE, add coolant immediately.
The coolant concentration should be maintained within 48% to 50%,
which equates to a freeze point between -30 °F (-34 °C) and -34 °F
(-37 °C).
Note: For best results, coolant concentration should be tested with a
refractometer such as Rotunda tool 300-ROB75240 available from your
dealer. Ford does not recommend the use of hydrometers or coolant test
strips for measuring coolant concentration.
Note: Automotive fluids are not interchangeable; do not use engine
coolant/antifreeze or windshield washer fluid outside of its specified
function and vehicle location.
Adding Engine Coolant
WARNING: Do not add engine coolant when the engine is hot.
Steam and scalding liquids released from a hot cooling system
can burn you badly. Also, you can be burned if you spill coolant on hot
engine parts.
WARNING: Do not put engine coolant in the windshield washer
fluid container. If sprayed on the windshield, engine coolant
could make it difficult to see through the windshield.
WARNING: To reduce the risk of personal injury, make sure the
engine is cool before unscrewing the coolant pressure relief cap.
The cooling system is under pressure; steam and hot liquid can come
out forcefully when the cap is loosened slightly.
WARNING: Do not add coolant further than the MAX mark.
Note: Do not use stop leak pellets, cooling system sealants or additives
as they can cause damage to the engine cooling and/or heating systems.
This damage would not be covered under your vehicle’s warranty.
326 Maintenance
2014 Explorer (exp)
Owners Guide gf, 2nd Printing, September 2013
USA (fus)