Chart 11

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Oil System Concerns: High Oil Consumption, Leaks

Carry out the following preliminary checks:

External leaks (rocker cover gasket, crankshaft seals).
Correct oil viscosity and API rating. Refer to the Owner's Literature.
Check intake air system: Air filter restriction gauge.
Loads do not exceed maximum gross vehicle weight rating (GVWR).

SYSTEM/COMPONENT	REFERENCE (Section 5 Pinpoint Test unless noted)
Verify High Oil Consumption	CONFIRM the oil consumption through maintenance records or other documentation. If records are not available, have the customer log oil consumption for 1,450 km (900 miles). If the oil consumption rate is NOT greater than 0.95 liter (1 quart) per 1,450 km (900 miles), no problem exists. RETURN the vehicle to the customer.
Check Base Engine	REFER toPERFORMANCE DIAGNOSTIC PROCEDURES . CARRY OUT the Crankcase Pressure Test.
Isolate Turbocharger	REMOVE the air duct at the turbocharger compressor housing outlet. REPEAT the crankcase pressure test. If the crankcase pressure decreases, CHECK the turbocharger for an oil leak. REFER to FUEL SYSTEM - GENERAL INFORMATION - GASOLINE AND DIESEL -- F-250-550 (SUPER DUTY PICKUPS) .