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My 2000 Boxster S owner's manual lists 10w40 synthetic and 15w40 conventional oils among the recommended types & viscosities. If it was OK then, why is it not OK now? Answer: 0w40 skews toward reduced fuel consumption. Since I am not focused on attaining the absolute minimum fuel consumption on my Boxster, it will most likely receive 10w40 syn on the next oil change...unless I go with 15w40 Swepco.
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Blue-S
2000 Boxster S 6-speed - Ocean Blue / Savanna Beige
* 9x7 short shifter * Pedro's enthusiast mount * Carrera Ltw. wheels * Stebro bypass pipes
* M030 coming soon! *
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