Approved US Oils:
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 and unique composition, the same oil should be used for any topping up that might
become necessary between oil change intervals, whenever possible.
Disclaimer
Technical Service Bulletin # 11/05 Date: 050728
Engine - Porsche Approved Oils
All
1/05 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.
