Engine - No Start in Extreme Cold Conditions
02/11/9412/07/94/US
SUBJECT:
Engine Oil Specification and Starting Procedure Cold Climate/Winter Use
MODEL:
Range Rover, Discovery, Defender
AFFECTED VEHICLES:
All Vehicles
Following customer complaints of no start in ambient temperatures of typically below -5 degrees Fahrenheit (-20°C), the service procedure shown following 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 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.
Note:
Since the break in characteristics of mineral oils exceed those of synthetic, synthetic oils should not be used before the 7500 mile service.
ACTION RE0UIRED
For customers who operate their vehicles in the shaded area of the map follow the procedure described. Advise customers of the starting procedure shown in ADDITIONAL DETAILS 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: RES 22.OLG4
or CCMC G4 or G5
or API grade SG or SH
SYNTHETIC OILS SHOULD NOT BE USED BEFORE THE 7500 MILE SERVICE.
PROCEDURE
For vehicles operated in the shaded area of the attached map:
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:
Continue to use the current servicing practice in line with the recommendations given in the Work Shop Manual and Owners Handbook.
WARRANTY
New vehicles only: Claim PD as per normal procedures. Oil change claim as shown below.
Vehicles in service: Warranty is not applicable, customer pay only.
COMP.CODE: N/A
SRO
Oil change New Vehicles:
Claim type "R"
Labor: Included in PDI time:
Material: Claim part number LRNAOIL (Credit of $10.00)
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 fahrenheit/-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 fahrenheit/-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