Jeep WRANGLER 2023 Owner's Manual page 303

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WARNING!
You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent
mechanic.
Failure to properly inspect and maintain your
vehicle could result in a component malfunction
and effect vehicle handling and performance. This
could cause an accident.
CAUTION!
In states that mandate fuel use of Biodiesel blends
greater than 5% (B6-B20) [Example: Minnesota in
summer months]:
Oil changes are required every 8,000 miles and
should not exceed 6 months.
Replace fuel filter and drain water from fuel filter
assembly every oil change, do not exceed
8,000 miles or 6 months.
If biodiesel greater than 5% (B6-B20) is used per
state mandate (example Minnesota in Summer
months) the fuel must be used within 30 days by
driving (to less than a quarter tank) and filled with
fresh diesel fuel. Failure to do so can result in
engine damage that is not covered by the New
Vehicle Limited Warranty.
SERVICING AND MAINTENANCE
301
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