Aside from the OEM stuff that is sold by Mazda (Epoxy based at $30/pop), does anyone have any suggestions as to an oil pan sealant that will provide good results in terms of longevity? Will regular RTV work fine? Considering the Miata doesn't have an entire gasket and the engine must be removed to remove the oil pan, I want something that's not going to leak 10k miles down the road. Suggestions?