Changed gear oil recently and it seems to be wet around the lower drain plug. Changed seals when doing the service and torqued to spec. There is no noticeable drip or leak happening but I can wipe the small amount of oil around the drain plug and it inevitably becomes wet again. This has me concerned about water intrusion when spring rolls around so should I drain now and try to replace the seal again with a new plug to see what happens? Never noticed this before when changing the gear oil. Thanks.