Toyota 2016 Highlander - Cooling System Data; Ignition System Data

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9-1. Specifications
HIGHLANDER_U (OM48F09U)
Cooling system
Capacity
(Reference)
2.7 L 4-cylinder
(1AR-FE)
engine
10.7 qt. (10.1 L, 8.9 Imp. qt.)
3.5 L V6 (2GR-
FE) engine
 Without towing package
12.3 qt. (11.6 L, 10.2 Imp. qt.)
 With towing package
12.6 qt. (11.9 L, 10.5 Imp. qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technol-
ogy
Do not use plain water alone.
Ignition system
Spark plug
Make  2.7 L 4-cylinder (1AR-FE) engine
DENSO SK16HR11
 3.5 L V6 (2GR-FE) engine
DENSO FK20HR11
Gap 0.043 in. (1.1 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.