Dodge CHALLENGER 2021 Owner's Manual page 287

Synthetic Engine Oils
You may use synthetic engine oils provided the
recommended oil quality requirements are met,
and the recommended maintenance intervals
for oil and filter changes are followed.
Synthetic engine oils which do not have both the
engine oil certification mark and the correct SAE
viscosity grade number should not be used.
Shaker Hood — If Equipped
Shaker Hood Oil Filler
For vehicles equipped with a "Shaker Hood",
the upper scoop will need to be removed so that
oil can be properly added to the engine.
To do this, you will need follow the procedure
below:
1. Remove the four nuts with the Shaker tool
located in glove compartment.
2. Lift off the upper scoop.
NOTE:
Be sure to clean off all debris around or inside
for the Shaker assembly.
3. Locate the oil fill cover in base assembly to
expose the oil fill cap.
4. Remove oil fill cap to add oil.
5. Re-install Shaker assembly.
Shaker Hood Air Filter Cleaning
1. Remove the air filter from the intake and
set the filter clamp a side.
2. Measure the length of the filter media.
3. Fill a bucket with warm clean water to the
depth matching the filter media
measurement and add a mild household
detergent or air filter cleaning solution.
4. Without allowing the solution to flow back
into the inside of the air filter, submerge the
filter media in to the water and let it soak for
ten minutes.
5. Empty the bucket filled with dirty water and
repeat steps 3 and 4.
6. Refill the bucket with clean warm water and
rinse the filter by rotating the filter.
NOTE:
The water should be clean with no signs of dirt
in the bucket.
SERVICING AND MAINTENANCE
7. Allow the filter to air dry. Re-install the filter
on the intake system once it is dry.
Shaker Hood Removal And Cleaning
1. Remove the four nuts with the Shaker tool
located in glove compartment.
2. Lift off the upper scoop.
NOTE:
Be sure to clean off all debris around or inside
for the Shaker assembly.
3. Using a water and mild detergent clean the
following locations:
The water drain slot located at the front

forward edge of the Shaker assembly.
The seals attached to the scoop and air

box.
Lower water drains located in the lower

Shaker assembly and air box as well as
the hood interface areas for the seals.
Apply Mopar Leather, Rubber & Vinyl
Protectant after cleaning to seals.
4. Re-install Shaker assembly.
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