Fiat 500e 2018 Owner's Manual page 262

260 TECHNICAL SPECIFICATIONS
CAUTION!
• Mixing of coolant (antifreeze) other than specified
Organic Additive Technology (OAT) coolant (anti-
freeze), may result in cooling system damage and
may decrease corrosion protection. Organic Additive
Technology (OAT) coolant is different and should
not be mixed with Hybrid Organic Additive Tech-
nology (HOAT) coolant (antifreeze). If a non-OAT
coolant (antifreeze) is introduced into the cooling
system in an emergency, it should be replaced with
the specified coolant (antifreeze) as soon as possible.
• Do not use water alone or alcohol-based coolant
(antifreeze) products. Do not use additional rust
inhibitors or antirust products, as they may not be
compatible with the radiator coolant and may plug
the radiator.
• This vehicle has not been designed for use with
propylene glycol-based coolant (antifreeze). Use of
propylene glycol-based coolant (antifreeze) is not
recommended.