Fueling; Diesel Fuel Specification; Diesel Exhaust Fuel (Def) Specification - MCi J4500 Operator's Manual

FUELING

Do not fill the tank from both necks at once or
have both fill caps open; the tank will over-fill
and overflow.
Two diesel ( ULSD ) fuel fillers are installed on
the coach. One is located behind a filler door in the
fuel tank compartment door on the curbside and the
second location is on the roadside behind a filler door
in the A/C condenser door ( Figures 95 and 96 ).
Figure 95. Diesel (ULSD) Fuel Door
Figure 96. A/C Condenser Door
Close filler and latch it securely.
68
DO NOT put anything but DEF in the DEF tank
( blue cap ).
One diesel exhaust fuel (DEF) filler door is next to
the curbside diesel (ULSD) filler door ( Figure 97 ).
Figure 97. DEF Tank Door

Diesel Fuel Specification

Engines must comply with EPA mandated low
emission guidelines by using ULSD (ultra low
sulfur diesel) fuel.
Failure to use ULSD fuel in 2016 EPA engines
will result in component damage.
Biodiesel not to exceed B20.

Diesel Exhaust Fuel (DEF) Specification

June 2016