Four-eyed Opossum ??

Anyone out there with experience with any of the four-eyed opossum species? I'm interested in longevity, temperature tolerance and diet, mainly. All the encyclopedia entries (including Walker's) states a life expectancy of approx 2 years for the grey/black and 4 years for the brown. However, I've heard conflicting anecdotal evidence of living beyond 4 years (unsure which species) from second-hand sources. I'd like any info on personal experiences with both captive bred and wild caught animals. Also, I'm interested in setups for keeping four-eyed opossums, including temperature regulation, which temperature ranges they can tolerate comfortably and diets fed.

Thanks.

hi i have four eyed possums i have grey and the life span has gone up on them they live about four years in captivity my wild caughts are quit snippy but when hand raised very good pets , my possum are kept in a large inclosure i made (i can email pics ) they are use to the hot so during summer there fine even when it gets up to 94 here but in winter they need good worm place i feed them just straight cheep dry cat food and wet every now and then an lots of fruit