Will an 85W power adapter fry the MBP 13" Mid 2009?
Yes, you can charge any MacBook with a MagSafe 1 charging port with any MagSafe 1 charger.

If the charger has a higher wattage than the one that shipped with your MacBook you can use it safely.

Your MacBook may charge faster with a charger that has a higher wattage, but it won't overcharge. The MacBook's power controller handles this on its own.



Charger-styles

Yes, you can use a T-shaped MagSafe 1 charger as well as an L-shaped MagSafe 1 charger with any MagSafe 1 compatible MacBook.