Loose Fuel Filler Cap Message; Materials Added To Fuel; Trailer Towing - Dodge Challenger 2019 User Manual

• Tighten the gas cap until you hear a "clicking"
sound. This is an indication that the gas cap is
tightened properly. The MIL in the instrument
cluster may turn on if the gas cap is not
secured properly. Make sure that the gas cap
is tightened each time the vehicle is refueled.

Loose Fuel Filler Cap Message

If the vehicle diagnostic system determines that
the fuel filler cap is loose, improperly installed,
or damaged, a "gASCAP" message will display
in the odometer or a "Check Gascap" message
will display in the instrument cluster. If this
occurs, tighten the fuel filler cap properly and
press the Trip Odometer button to turn off the
message. If the problem continues, the mes-
sage will appear the next time the vehicle is
started.
A loose, improperly installed, or damaged fuel
filler cap may also turn on the MIL.
130

Materials Added To Fuel

Designated TOP TIER
Detergent Gasoline con-
tains a higher level of
detergents to further
aide in minimizing en-
gine and fuel system
deposits. When avail-
able, the usage of TOP
TIER Detergent gasoline is recommended. Visit
www.toptiergas.com for a list of TOP TIER De-
tergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these mate-
rials intended for gum and varnish removal may
contain active solvents or similar ingredients.
These can harm fuel system gasket and dia-
phragm materials.

TRAILER TOWING

In this section, you will find safety tips and
information on limits to the type of towing you
can reasonably do with your vehicle. Before
towing a trailer, carefully review this information
to tow your load as efficiently and safely as
possible.
To maintain warranty coverage, follow the re-
quirements and recommendations in this
manual concerning vehicles used for trailer tow-
ing.
Manual Transmission — If Equipped
Trailer towing with this vehicle is not recom-
mended.