Jeep Gladiator 2021, Owner'S Manual

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456 TECHNICAL SPECIFICATIONS
Biodiesel Fuel Properties — Low Ambient
Temperatures
Biodiesel fuel may gel or solidify at low ambient
temperatures, which may pose problems for
both storage and operation. Precautions can be
necessary at low ambient temperatures, such
as storing the fuel in a heated building or a
heated storage tank, or using cold temperature
additives.
Fuel Quality — Must Comply With ASTM
Standards
The quality of Biodiesel fuel may vary widely.
Only fuel produced by a BQ9000 supplier to the
following specifications may be blended to
meet biodiesel blend B6 – B20 fuel meeting
ASTM specification D-7467:

Petrodiesel fuel meeting ASTM specification
D-975 and biodiesel fuel (B100) meeting
ASTM specification D-6751
Fuel Oxidation Stability — Must Use Fuel
Within Six Months Of Manufacture
Biodiesel fuel has poor oxidation stability which
can result in long term storage problems. Fuel
produced to approved ASTM standards, if
stored properly, provides for protection against
fuel oxidation for up to six months.
Fuel Water Separation — Must Use
Mopar® Approved Fuel Filter Elements
Biodiesel fuel has a natural affinity to water and
water accelerates microbial growth. Your
Mopar® filtration system is designed to provide
adequate fuel water separation capabilities.
Fuel In Oil Dilution — Must Adhere To
Required Oil Change Interval
Fuel dilution of lubricating oil has been
observed with the use of biodiesel fuel. Fuel in
oil must not exceed 5%. To ensure this limit is
met your oil change interval must be
maintained with in the suggested schedule. The
regular use of biodiesel between 6% and 20%
requires intervals shorter than the outlined
10,000 miles (16,000 km) and must not
exceed the suggested schedule. When routinely
operating on biodiesel between 6% and 20%, oil
and filter replacement intervals must not
exceed 8,000 Miles (13,000 km) or six months,
which ever comes first.
Biodiesel Fuel Filter Change Intervals
The use of biodiesel requires more frequent fuel
filter change intervals. When operating on
biodiesel between 6% and 20%, fuel filter
replacement intervals should be every second
oil change, and must not exceed 16,000 miles
(25,750 km).
NOTE:
Under no circumstances should oil change
intervals exceed 8,000 miles (12,875 km) or
six months, if regular operation occurs with 6%
- 20% biodiesel blends. Under no circumstances
should fuel filter replacement intervals exceed
every second oil change and must not exceed
16,000 miles (25,750 km), if regular operation
occurs with 6% - 20% biodiesel blends. Failure
to comply with these Oil Change and fuel filter
requirements for vehicles operating on
biodiesel blends up to B20 may result in prema -
ture engine wear. Such wear is not covered by
the New Vehicle Limited Warranty. The engine
may suffer severe damage if operated with
concentrations of biodiesel higher than 20%.