Cooling System Maintenance; Coolant Specifications - Toro 03952 Operator's Manual

Cooling System Maintenance

Coolant Specifications

The coolant reservoir is filled at the factory with a 50/50 solution of water and ethylene glycol
base extended-life coolant.
Use only commercially available coolants that meet the specifications listed in the
Extended Life Coolant Standards Table.
Do not use conventional (green) inorganic-acid technology (IAT) coolant in your
machine. Do not mix conventional coolant with extended-life coolant.
Coolant Type Table
Ethylene-Glycol Coolant Type
Extended-life antifreeze
Do not rely on the color of the coolant to identify the difference between conventional
(green) inorganic-acid technology (IAT) coolant and extended-life coolant.
Coolant manufacturers may dye extended-life coolant in one of the following colors: red,
pink, orange, yellow, blue, teal, violet, and green. Use coolant that meets the specifications
in the Extended Life Coolant Standards Table.
Extended Life Coolant Standards
ATSM International
D3306 and D4985
Coolant concentration should be a 50/50 mixture of coolant to water.
• Preferred: When mixing coolant from a concentrate, mix it with distilled water.
• Preferred option: If distilled water is not available, use a pre-mix coolant instead of a
concentrate.
• Minimum requirement: If distilled water and pre-mix coolant are not available, mix
concentrated coolant with clean drinkable water.
3464-482A
IMPORTANT
Corrosion Inhibitor Type
Organic-acid technology (OAT)
IMPORTANT
SAE International
J1034, J814, and 1941
IMPORTANT
Page 6–29 Maintenance: Cooling System Maintenance