Make sure you follow the factory fill instructions, it is not fill until it overflows.
My 01 has been running Royal Purple for about 50K miles, shifts well hot or cold. In the cold the Porsche brand was a little more stiff at sub zero WI temps.
https://www.pelicanparts.com/techarticles/Boxster_Tech/38-TRANS-Manual_Fluid/38-TRANS-Manual_Fluid.htm
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
Last edited by Paul; 04-18-2020 at 05:59 PM.
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