95 Blazer Check engine light

So earlier last nigh i used the lucas fuel treatment. When i was driving around later that night, i noticed my check engine light came on. I already privatley messaged other members about this, but i'd like to hear if anyone has had a problem like this. IM thinking maybe it could be the effect its having on the engine maybe?

I dont know, but i wont be able to get it checked out until early NEXT week.

I disconnected the battery. Then tryed it again, drove it around my block a few times, and the light is gone. So im guessing its nothing too bad?

No light all may be well but if it comes back get code checked and post back code no.
Good Luck
MT