Engine - Porsche Approved Oils
All1/05 1701
Service Technical Binder, Group 1
This bulletin replaces multiple bulletins,
see filing information for list.
Engine Oils Approved by Porsche
Date: 7-28-05
Vehicle Type:
Sports Cars/Cayenne S/Cayenne Turbo (Not V6)
Model Year:
1984 - on
Filing Information:
This bulletin replaces the following bulletins:
Boxster (986) Group 1 # 1/05 Dated 3-31-05
Boxster (987) Group 1 # 2/05 Dated 3-31-05
911 (996) Group 1 # 1/05 Dated 3-31-05
911 Turbo (996) Group 1 # 1/05 Dated 3-31-05
911 (997) Group 1 # 1/05 Dated 3-31-05
Carrera GT Group 1 # 1/04 Dated 2-25-04
Cayenne V8 Group 1 # 2/05 Dated 3-31-05
Please remove the above-mentioned bulletins from the appropriate workshop manual and file this bulletin in the single Service Technical Bulletin binder.
Concern:
Engine oils approved by Porsche.
Information:
Approved Oil Availability
Porsche approved oil availability varies by global region. Some oils on the following "Approved List" may not be available in certain regions of the North American market, or, may only be available in overseas markets exclusively.
When searching the "Approved List" for a particular manufacturer or brand name, keep in mind that the below listed "Sales Region Codes" are marketed for the North American region:
CDN Canada
N-A North America
USA United States of America
WV" World-Wide
Explanations:
Oil Quality
The engine oil is not only a lubricant, but also fulfills many functions at the same time such as component cooling, component cleaning, and protection from corrosion. To be able to fulfill this task, the oil contains specially-developed additives. Mineral oils are extracted directly from crude oil. Using a series of chemical processes, these oils can be further refined (hydrocracked oils) or completely transformed (synthetic oils). These oils provide a higher level of performance than pure mineral oils.
Only hydrocracked or synthetic oils are now approved by Porsche.
Non-seasonal Light-running Oils
Non-seasonal oils are distinguished by their low viscosity at low temperatures as well as a high level of temperature stability and a particularly low tendency to evaporate at high temperatures due to their composition. Oils which can meet such high performance requirements can be used as non-seasonal oils while taking into consideration the correct temperature range (see the temperature range point). These oils also have good light-running properties because of their small low-temperature viscosity and can therefore be referred to as non-seasonal light-running oils.
Only non-seasonal light-running oils are now approved by Porsche.
Viscosity
The viscosity of an engine oil is specified by the SAE viscosity class. The first number and the letter W (winter) identify the viscosity at lower temperatures. For example: 0W or 5W, where SW is more viscous than 0W. The second number indicates the viscosity at higher temperatures. For example: 40 or 50, where 40 is less viscous than 50. Multi-grade oils are identified by both viscosity specifications.
For example, SAE OW4O or 5W40 or 5W50.
Examples:
0W40 and 5W40 oils have the same viscosity at higher temperatures, however, at lower temperatures, the SW oil is more viscous.
5W40 and 5W50 have the same viscosity at low temperatures, but at higher temperatures, the oil having viscosity class 40 is less viscous.
Temperature Ranges
Above -12° F (-25° C): all oils approved by Porsche for the vehicle type to be considered
Below -12° F. (-25° C:: all oils approved by Porsche for the vehicle type to be considered which have the SAE class 0W at lower temperatures.
Miscibility
The engine oils approved by Porsche can be mixed to the extent that it is not necessary to flush the engine when the oil is changed, or another type of oil is used. This holds true for mineral oils and synthetic oils.
However, since every brand of oil has a specially adapted unique composition, the same oil should be used for any topping up that might become necessary between oil change intervals, whenever possible.
Overview:
Disclaimer