How to add coolant to the coolant recovery tank, A caution – GMC 2003 Envoy User Manual
Page 326
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How to Add Coolant to the Coolant
Recovery Tank
If you haven't found a problem yet, but the coolant level
isn't at the FULL GOLD tnark, arid a 50^&D miiitiire ol
dean, ¡drinkable
waiarand OEX-COOL'® engine coolant
at Ihe coolani recoveTy tank. See
Engine Coolant on
p&ge 5-24
for more infofmation.
Adding only plain water to your cooling
ayetem can be dangerous. Plain water, or
aome other liquid such as alcohol, can boll
before the proper coolant mixture wilL Your
vehicle's coolant warning system is set lor Ihe
proper coolant mixture. With plain water or the
wrong mixturCr your engine could gel loo hot
bul you wouldn't get the overheat warning.
Vour angina could catch fire and you or others
could be burned. Use a 5№50 mixture of ofearik
drinkable water and DEX COOL^ coolant.
Notice:
In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Uae the recommended coolant and the proper
coolant mixture.
A CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it win burn If the engine parts are hot
enough. Don't spifi coolant on a hot engine.
5'31