FORD 2003 E-550 v.1 - Manual (Page 213)

3 If a spark plug is removed for inspection, it must be reinstalled in the
same cylinder. Cylinders No. 1, 2 and 3 have a “EGM” suffix. Cylinders
No. 4, 5 and 6 have a “EM” suffix. If a spark plug needs to be replaced,
use only spark plugs with the service part number suffix letter
ЉEEMЉ as
shown on the engine decal.
4 If a spark plug is removed for inspection, it must be reinstalled in the
same cylinder. Cylinders No. 1, 2, 3 and 4 have a “PG” suffix. Cylinders
No. 5, 6, 7 and 8 have a “P” suffix. If a spark plug needs to be replaced,
use only spark plugs with the service part number suffix letter as shown
on the engine decal.
REFILL CAPACITIES
Fluid Ford Part
Name Application Capacity
Brake fluid Motorcraft High
Performance
DOT 3 Motor
Vehicle Brake
Fluid All Fill to line on
reservoir
Engine
oil-gasoline
engine (includes
filter change) Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil All 5.7L (6.0
quarts)
Engine oil-diesel
engine (includes
filter change) Refer to the 7.3L Power Stroke Direct Injection
Turbo Diesel Owner’s Guide Supplement.
Maintenance and Specifications
213