compression ratio LINCOLN LS 2003 Owners Manual

Item Ford part
nameFord part
numberFord
specification
Rear Axle
LubricantMotorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lube
2
XY-75W90–
QFEHPES-3W4W-
19A508–AA
Automatic
transmission
fluidMotorcraft
MERCONV
AT F
3
XT-5-QM MERCONV
Windshield
washer fluidUltra-clear
Windshield
Washer
ConcentrateC9AZ-19550-AC ESR-M17P5-A
1Use only brake fluids certified to meet Ford specifications. DOT 3 fluid
is recommended. However, if DOT 3 is not available, DOT 4 fluid can be
used.
2Ford design rear axles contain a synthetic lubricant that does not
require changing unless the axle has been submerged in water.
3Ensure the correct automatic transmission fluid is used. MERCONand
MERCONV are not interchangeable. DO NOT MIX MERCONand
MERCONV. Refer to the scheduled maintenance guide to determine
the correct service interval.
ENGINE DATA
Engine 3.0L-4V V6 engine 3.9L-4V V8 engine
Displacement 2 968 cc (181 cid) 3 949 cc (241 cid)
Required fuel 91 octane 91 octane
Firing order 1-4-2-5-3-6 1-5-4-2-6-3-7-8
Spark plug gap 1.30-1.45 mm
(0.051-0.057 inch)0.99-1.09 mm
(0.039-0.043 inch)
Ignition system Coil on plug Coil on plug
Compression ratio 10.5:1 10.75:1
Maintenance and Specifications
275