Food for thought. I've always used Mobil 1 0W-40 oil. I decided to try out Mobil 1 5W-40 and got engine clatter at start up. By the end of the week I switched back to to the 0W-40 oil.
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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