Item CapacityFord Part Name or
equivalentFord Part Number /
Ford Specification
Rear axle fluid (4X4)
5
2.4 pints (1.15L)
6
Motorcraft SAE 80W-90
Premium Rear Axle
LubricantXY-80W90-QL /
WSP-M2C197-A
Power Transfer Unit
fluid
(4X4)
7
12 ounces (0.35L)Motorcraft SAE 75W-140
Synthetic Rear Axle
LubricantXY-75W140-QL /
WSL-M2C192-A
Windshield washer fluid 2.7 quarts (2.6L)Motorcraft Premium
Windshield Washer
ConcentrateZC-32-A /
WSB-M8B16-A2
Fuel tank16.5 gallons
(62.5L)——
1Add the coolant type originally equipped in your vehicle.2Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only meet the
requirements of Ford specification WSS-M2C930-A and the API Certification mark.3Indicates only approximate dry-fill capacity. The amount of transmission fluid and fluid level
should be set by the indication on the dipstick’s normal operating range.4Automatic transmissions that require MERCONV should only use MERCONV fluid or fluid that
is specified dual usage MERCON/MERCONV. Refer toscheduled maintenance informationto
determine the correct service interval. Use of any fluid other than the recommended fluid may
cause transmission damage.54X4 vehicles exposed for prolonged periods to temperatures less than -40°F (-40°C) should
change out the rear axle fluid to Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant, Ford part
number XY-75W140-QL meeting Ford specification WSL-M2C192-A.6Fill to 1/4 inch to 9/16 inch (6 mm to 14 mm) below bottom of fill hole.7The Power Transfer Unit is lubricated for life with synthetic lube. Lubricant levels are not to be
checked or changed unless a leak is suspected or repair required. Replace Power Transfer Unit
lubricant with specified synthetic lubricant anytime the unit is submerged in water. Never engage
the 4X4 feature while on dry pavement.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
287
ENGINE DATA
Engine 2.3L I4 engine 3.0L DOHC V6
Duratec engine
Cubic inches 140 183
Required fuel 87 octane 87 octane
Firing order 1-3-4-2 1-4-2-5-3-6
Ignition system Coil on plug Coil on plug
Spark plug gap 0.049–0.053 inch
(1.25–1.35mm)0.052–0.056 inch
(1.32–1.42mm)
Compression ratio 9.7:1 10.0:1
Engine drivebelt routing
•2.3L I4 Engine with A/C—Without A/C similar
•3.0L V6 Engine
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
288
recommendations ...................261
refill capacities ........................286
specifications ..........................286
Event data recording ....................7
Exhaust fumes ..........................184
F
Fail safe cooling ........................269
Fluid capacities .........................286
Foglamps .....................................42
Four-Wheel Drive vehicles
driving off road .......................201
preparing to drive your
vehicle .....................................194
Fuel ............................................270
calculating fuel
economy ............................67, 275
cap ...........................................272
capacity ...................................286
choosing the right fuel ...........273
comparisons with EPA
fuel economy estimates .........278
detergent in fuel .....................274
filling your vehicle
with fuel ..................270, 272, 275
filter, specifications ........270, 285
fuel pump shut-off switch .....211
improving fuel economy ........275
octane rating ...................274, 288
quality ......................................274
running out of fuel .................274
safety information relating
to automotive fuels ................270
Fuses ..................................211–212
G
Gas cap (see Fuel cap) ............272Gas mileage
(see Fuel economy) .................275
Gauges .........................................17
H
Hazard flashers .........................210
Head restraints .....................95, 99
Headlamps ...................................41
aiming ........................................44
bulb specifications ....................47
flash to pass ..............................43
high beam .................................43
replacing bulbs .........................48
turning on and off ....................41
Heating
heating and air conditioning
system .......................................37
manual heating and air
conditioning system .................34
Hood ..........................................253
I
Ignition ...............................181, 288
Illuminated visor mirror .............54
Infant seats
(see Safety seats) .....................137
Inspection/maintenance
(I/M) testing ..............................280
Instrument panel
cleaning ...................................248
cluster ........................................12
lighting up panel and
interior .......................................43
J
Jump-starting your vehicle ......229
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
295
