Doosan DX60R Shop Manual page 224

Only use the engine coolant specified. Other engine
coolants may affect warranty coverage, cause an internal
buildup of rust and scale and / or shorten engine life.
Prevent dirt and debris from contaminating the engine
coolant. Carefully
surrounding area before you remove the cap.
Never mix different types of engine coolants. This may
adversely affect the properties of the engine coolant.
Engine Coolant Specifications
Use a Long Life Coolant (LLC) or an Extended Life Coolant
(ELC) that meets or exceeds the following guidelines and
specifications:
Additional Technical Coolant Specifications:
• ASTM D6210, D4985 (US)
• JIS K-2234 (Japan)
• SAE J814C, J1941, J1034 or J2036 (International)
Alternative Engine Coolant
If an Extended or Long Life Coolant is not available,
alternatively, you may use an ethylene glycol or propylene
glycol based conventional coolant (green).
NOTE: ALWAYS use a mix of coolant and water. NEVER use
water only.
Mix the coolant and water per the mixing instructions
on the coolant container.
Water quality is important to coolant performance.
DOOSAN
demineralized water beused to mix with coolants.
NEVER mix extended or long life coolants and
conventional (green) coolants.
NEVER mix different types and / or colors of
extended life coolants.
Replace the coolant every 1000 engine hours or once
a year.
Engine
Page 44
CAUTION
clean the radiator
recommends that soft,
cap and the
distilled, or
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