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Originally Posted by JackG
All true, but...
Porsche doesn't "design" oil. They don't manufacture it, or even package it.
The guy that designed the tranny writes up a spec for it, and the lowest bidder gets a contract to supply it in a bottle that has the Porsche name on it.
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Then why do lubes have a manufactures spec?
such as
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Mobil 1 0W-40 keeps engines starting in Arctic-extreme cold, and it cleans deposits, sludge and varnish often formed in high temperature operating conditions.
Mobil 1 0W-40 meets key industry and car builder specifications for:
− Mercedes MB 229.5
− Porsche Approval List 2002
− GM-LL-A-025 (gasoline)
− ACEA A3, B3/B4
− BMW Longlife 01
− VW 502.00/505.00/503.01
− GM-LL-B-025 (diesel)
− API SM/CF