Use 5W-30 oil.
It is the correct specification for ALL 3.0 and 3.2 SHO engines per Ford TSB 99-8-16 as follows:
FORD:
1989-93 FESTIVA
1989-94 TEMPO
1989-97 PROBE, THUNDERBIRD
1989-99 CROWN VICTORIA, ******, MUSTANG, TAURUS
1994-97 ASPIRE
1995-99 CONTOUR
LINCOLN-MERCURY:
1989-92 MARK VII
1989-94 TOPAZ
1989-97 COUGAR
1989-99 CONTINENTAL, GRAND MARQUIS, SABLE, TOWN CAR, TRACER
1991-94 CAPRI
1994-98 MARK VIII
1995-99 MYSTIQUE
1999 COUGAR
LIGHT TRUCK:
1989-90 BRONCO II
1989-96 BRONCO
1989-97 AEROSTAR, F SUPER DUTY
1989-99 ECONOLINE, F-150, F-250 LD, RANGER
1991-99 EXPLORER
1993-99 VILLAGER
1995-99 WINDSTAR
1997-99 EXPEDITION, MOUNTAINEER
1998-99 NAVIGATOR
1999 SUPER DUTY F SERIES
ISSUE:
Ford Motor Company now recommends SAE 5W-30 viscosity grade for servicing any Ford gasoline-powered vehicle regardless of model year.
ACTION:
When servicing any Ford gasoline-powered vehicle, use SAE 5W-30 viscosity grade motor oil. Refer to the following text for further details.
Both SAE 10W-30 and SAE 5W-30 viscosity grade motor oils have been recommended in the past depending on vehicle model and model year.
Tests have proven SAE 5W-30 viscosity grade motor oil provides the optimum protection and benefits for Ford gasoline engines. At both high and low ambient temperature conditions, SAE 5W-30 provides the best overall protection. It allows faster starts under cold ambient temperatures.
SAE 5W-30 also provides approximately 1/2% increase in fuel economy over SAE 10W-30.
SAE 5W-30 viscosity grade motor oils certified for gasoline engines by the American Petroleum Institute (API) should be used for all service procedures requiring replacement of the motor oil.
Please note: A TSB in 2002 superceded many of these listings, but not the SHO.
Article No.02-1-9
ENGINE - ENGINE OIL - RECOMMENDED APPLICATIONS FOR SAE 5W-20 AND SAE 5W-30 MOTOR OILS - GASOLINE AND FLEXIBLE FUEL VEHICLES ONLY
Publication Date: JANUARY 14, 2002
FORD: 1992-2002 CROWN VICTORIA
1993-94 TEMPO
1993-97 THUNDERBIRD
1993-2002 ******, MUSTANG, TAURUS
1995-2000 CONTOUR
1998-2002 ****** ZX2
2000-2002 FOCUS
1993-96 BRONCO
1993-97 AEROSTAR
1993-2002 E SERIES, F-150, RANGER
1995-2002 WINDSTAR
1997-99 F-250 LD
1997-2001 EXPLORER
1997-2002 EXPEDITION
1999-2002 SUPER DUTY F SERIES, SUPER DUTY F-53 STRIPPED CHAS.
2000-2002 EXCURSION
2001-2002 ESCAPE
LINCOLN: 1991-2002 TOWN CAR
1993-98 MARK VIII
1993-2002 CONTINENTAL
2000-2002 LS
1998-2002 NAVIGATOR
MERCURY: 1992-2002 GRAND MARQUIS
1993-94 TOPAZ
1993-97 COUGAR
1993-99 TRACER
1993-2002 SABLE
1995-2000 MYSTIQUE
1999-2002 COUGAR
1997-2001 MOUNTAINEER
This article is being republished in its entirety to update the vehicle models, engines and years affected.
NOTE: PLEASE REFER TO THE VEHICLE APPLICATION LIST LATER IN THIS TSB FOR A COMPLETE LIST OF VEHICLES AFFECTED BY THIS TSB.
ISSUE:
Ford Motor Company now recommends SAE 5W-20 viscosity grade for servicing most gasoline and flexible fueled vehicles.
ACTION:
All 2001 and 2002 vehicles where SAE 5W-20 is specified should be serviced at the recommended oil change intervals using SAE 5W-20. This oil is an improved formulation to improve fuel economy. Testing has validated this viscosity grade can be used in many previous model year vehicles. It is recommended ALL vehicles on the following Vehicle Application Listing be service with SAE 5W-20.
All 2001-2002 vehicles other than those listed in the "Exception 2001 Vehicles" or "Exception 2002 Vehicles" chart are being filled with SAE 5W-20 motor oil at the factory and should also be serviced with SAE 5W-20 oil.
Vehicle Application Listing Approved For SAE 5W-20 Motor Oil
1993-1996 1.9L ******/Tracer
1995-2000 2.0L Zetec Contour/Mystique
1999-2002 2.0L Cougar
1997-2002 2.0L ******/Tracer
1998-2002 2.0L ****** ZX2
2000-2002 2.0L Focus
2001-2002 2.0L Escape
1993-1997 2.3L Ranger
1993-1994 2.3L Mustang
1993-1994 2.3L Tempo/Topaz
1998-2001 2.5L Ranger
1995-2000 2.5L Contour/Mystique
1999-2002 2.5L Cougar
2001-2002 3.0L 4V Escape
1996-2001 3.0L 4V Taurus/Sable
1993-2002 3.0L (Vulcan) Aerostar/Ranger, Taurus/Sable (Flexible Fuel and Gas)
1995-2000 3.0L (Vulcan) Windstar
1993-1994 3.0L (Vulcan) Tempo/Topaz
2000-2002 3.0L 4V Lincoln LS
1995-2002 3.8L Windstar
1993-1997 3.8L Taurus/Sable, Thunderbird/Cougar, Continental
1994-2002 3.8L Mustang
2002-2002 3.9L 4V Lincoln LS
1997-2002 4.2L (SPI) F-150 (under 8500 GVW only), E-Series
1996-2002 4.6L 2V Mustang
1992-2002 4.6L Crown Victoria/Grand Marquis
1991-2002 4.6L Town Car
1994-1997 4.6L 2V Thunderbird/Cougar
1996-2002 4.6L 4V Mustang Cobra
1995-2002 4.6L 4V Continental
1993-1998 4.6L 4V Mark VIII
1997-2002 4.6L 2V Triton F-150/250 (under 8500 GVW only), E-Series, Expedition
1993-1999 4.9L E-Series, F-Series
1993-1995 5.0L Mustang/Mustang Cobra
1993-1993 5.0L Thunderbird/Cougar
1997-2001 5.0L Explorer/Mountaineer
1993-1996 5.0L E-Series, F-Series, Bronco
2000-2002 5.4L Excursion
1998-2002 5.4L 2V/4V Navigator
1997-2002 5.4L 2V F-150/250 (under 8500 GVW only), Expedition, E-Series, E-350 Chassis/RV/Cutaway
1993-1997 5.8L F-Series, Bronco
1993-1996 5.8L E-Series
2000-2002 6.8L Excursion
1997-2002 6.8L E-Series, E-350 Chassis/RV/Cutaway
1999-2002 6.8L Super Duty F-Series 250 HD/350/450/550 Motorhome
1993-1998 7.5L All Vehicles
NOTE: FOR 1993 THROUGH 1998 MODEL YEAR FFV USE XO-10W30-FFV.
NOTE: THE "EXCEPTION 2001-2002 VEHICLES" SHOULD BE SERVICED WITH SAE 5W-30 MOTOR OIL.
Exception 2001 Vehicles
Engine Vehicle
3.3L Villager
3.9L Lincoln LS
4.0L Ranger, Explorer/Mountaineer, Explorer Sport, and Explorer Sport Trac
Exception 2002 Vehicles
Engine Vehicle
2.0L HP Zetec SVT Focus
3.3L Villager
4.0L Ranger, Explorer/Mountaineer, Explorer Sport, and Explorer Sport Trac
NOTE: IF VEHICLE IS NOT LISTED IN THIS APPLICATION, SAE 5W-30 OIL IS RECOMMENDED. REFER TO TSB 99-8-16.
Skip the 10W-40 and use what the manufacturer recommends. Any good quality oil will suffice.
Steve