Engine Oil - Ford 05+ Mustang 2008 Supplement Manual

Maintenance and Specifications
ENGINE OIL RECOMMENDATION
Use Motorcraft SAE 5W-50 full synthetic or an equivalent SAE 5W-50 full
synthetic oil meeting Ford specification WSS-M2C931-B.
Do not use supplemental engine oil additives, cleaners or other engine
treatments. They are unnecessary and could lead to engine damage that
is not covered by Ford warranty.
Change your engine oil and filter according to the appropriate schedule
listed in the Scheduled Maintenance Guide.
ENGINE AND INTERCOOLER COOLANT
The concentration and level of engine coolant should be checked at the
mileage intervals listed in the scheduled maintenance guide. The coolant
concentration should be maintained at 50/50 coolant and water, which
equates to a freeze point of -36°C (-34°F). Coolant concentration testing
is possible with a hydrometer or antifreeze tester (such as the Rotunda
Battery and Antifreeze Tester, 0014–R1060). The level of coolant should
be maintained at the "cold fill range" level in the coolant reservoir. If the
level falls below, add coolant per the instructions in the Adding Engine
Coolant section.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.
A 50/50 mixture of coolant and water provides the following:
• freeze protection down to -36°C (-34°F).
• boiling protection up to 129°C (265°F).
• protection against rust and other forms of corrosion.
• an accurate temperature readout from the engine coolant
gauge.
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2008 05+ Mustang (197)
Supplement
USA (fus)