Jeep Wrangler JK 2018 Owner's Manual page 370

18 wrangler user manual
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368 SERVICING AND MAINTENANCE
Mileage or time passed (which-
ever comes first)
Or Years:
Or Kilometers:
Flush and replace the engine cool-
ant at 10 years or 150,000 miles
(240,000 km) whichever comes
first.
Change automatic transmission
fluid and filter if using your vehicle
for any of the following: police,
taxi, fleet, or frequent trailer tow-
ing.
Change the automatic transmis-
sion fluid and filter.
Change the manual transmission
fluid if using your vehicle for any of
the following: trailer towing, snow
plowing, heavy loading, taxi, po-
lice, delivery service (commercial
service), off-road, desert operation
or more than 50% of your driving
is at sustained high speeds during
hot weather, above 90°F (32°C).
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