If it's just the seals and it's smoking quite a bit there's a chance(trying to be optimistic) one or more is torn/broken.

However, if the seals have more than 5yrs./50k miles on them I would trying using some sort of seal conditioner just in case. No guarantees of course but it's a cheap, safe(if it's not designed to "swell" the seals) way to see if the problem is with the seals having become hard/brittle with age.

Most, if not all, "high mileage" oils are designed to condition seals so you could try that, though I haven't used one personally.
I use Bardahls which nowadays says stop leak (in addition to seal conditioner) on the bottle but it's designed to condition the seals, not plug leaks. A traditional stop leak designed to plug leaks or fill cracks I would stay away from if you can.