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Originally Posted by CJ_Boxster
I use 10w40, its no longer recommended by porsche but it was on the approved oils list at one time. Ummm well i dont know what the Mobile1 costs but my RP is about $5.65 a quart.
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Does anyone know why Porsche would remove it from the approved oil list?
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-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house
