I am putting my 300e away for the summer.( three month period). Any caretaking advice. Should I unplug battery? How often should I start and drive it ?(I will not have ready access to it) I also have a very slow engine oil leak somewhere ( should I let it spill out over time or continue topping it off if im not starting it)? Any other tips/suggestions appreciated.

SAMI
'convertible weather is here'

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***SAMI*****
1986 300E 240K
1999 Mitsubishi Spyder GS 60K