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Originally Posted by boxsternut
has anyone tried Mobil-1 5W40? My brother-in-law is coming up from the States and can get 5 quart Mobil1 5W40 for $22 a jug at Wal-Mart with no tax in New Hampshire. In our owners manual, it lists this weight as acceptable, see below:
generally above -13°F (-25°C ) SAE 0W-40, 5W-40, 5W-50 approved by Porsche
generally below -13°F (-25°C ) SAE 0W-40 approved by Porsche
I don't understand why, even in Texas(where my car is from), they use 0W40? It's harder to find, costlier and the temp. usually isn't below -25C...even in Canada! Anyone?????????
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Type "oil" into the forum search engine and get ready for overload.
I've used M1 0w40 ever since I got the car, but I'm thinking of switching to Castrol Syntec 5w40 next time.