Engine Oil Specification And Starting Procedure Cold Climate/Winter Use (12/07/94/US)

ENGINE OIL SPECIFICATION AND STARTING PROCEDURE COLD CLIMATE/WINTER USE

TECHNICAL SERVICE BULLETIN

DETAIL

Following customer complaints of no start in ambient temperatures of typically below -5 degrees Fahrenheit ( -20° C), the service procedure shown below should be implemented immediately for all vehicles operated in the shaded areas of the attached map. Oil viscosity and battery condition have a significant affect upon engine cranking speed particularly in cold temperatures.

5W/30 or 5W/40 engine oil and the starting procedure shown below will ensure that the best cranking speed and lubrication characteristics are achieved in extreme cold weather.

ACTION REQUIRED

For customers who operate their vehicles in the shaded area of the attached map follow the procedure below. Advise customers of the starting procedure shown and make them aware of the instructions in the Owners Handbook which have recently been updated.

PARTS INFORMATION

5W/30 or 5W/40 engine oil (Mineral oil only)

Conforming to

1. RES 22.OLG4
2. or CCMC G4 or G5
3. or API grade SG or SH

SYNTHETIC OILS SHOULD NOT BE USED BEFORE THE 7500 MILE SERVICE.

WARRANTY

New vehicles only: Claim PDI as per normal procedures. Oil change claim as shown below.

Vehicles in service: Warranty is not applicable, customer pay only.

COMP. CODE: N/A

Oil change New Vehicles:

Claim type "R"

Labor: Included in PDI time:

Material: Claim part number LRNAOIL

PROCEDURE

For vehicles operated in the shaded area of the attached map (see Fig 1 ):

New Vehicles - PDI 

Drain engine oil and fill with either 5W/30 or 5W/40 conforming to the above specification. Do not renew the oil filter.

Vehicle Maintenance Oil Change 

Following the service schedules for engine oil changes - use 5W/30 or 5W/40 as above.

For vehicles operated outside of the shaded map area (see Fig 1 ):

Continue to use the current servicing practice in line with the recommendations given in the Work Shop Manual and Owners Handbook.

ADDITIONAL DETAILS

1. Heated Seats/screens - Battery Condition

   The above accessories involves high power consumption and therefore should be used with discretion. To avoid heavy drainage of the battery, which results in reduced cranking speed, use of the above accessories is recommended only when the engine is running.

2. Cranking Technique

   Whenever possible please ensure that customers DO NOT ABORT THEIR START ATTEMPT PREMATURELY.

   In extreme conditions (below -13 degrees farenheit/-25° C) the cranking period may be extended to a max of 30 seconds. THE ACCELERATOR PEDAL SHOULD NOT BE DEPRESSED UNTIL THE ENGINE HAS STARTED.

3. In Extreme Conditions

   (Below -13 degrees farenheit/-25° C)

   Use of a 115 volt powered block heater will significantly improve the starting capability of the engine. Please ensure that customers who operate their vehicles in extreme conditions are aware of the benefits of block heaters. These are available as an accessory, part # PRC9674