I've got a 98 Integra GSi as well. Just hit 180,000kms. I'm currently running Castrol Magnatec 10W40, which seems to be doing fine, considering its not chewing oil. Although I'm thinking of trying a 5W40, with the assumption that it will warm up quicker.
My friend recommended Valvoline synpower 5W40, which I believe is a full synthetic.

