Ky Jelly is not lube!
Don't use anything oil-based with condoms.
KY jelly is lube, and is water based. It might not be everybody's preference and it isn't mine either, but that doesn't mean it's OK to be misleading.
OP I suspect you haven't got many answers just because this has been done so many times already - if you do a search for 'lube' (or better, 'Liquid Silk' since it always comes up) you should find plenty of posts