cleaning dirty hardwood floors??

[Adam Drummond]

I have an older home with original hardwood floors which are prob 70-80 years old.  Floors were refinished 5-7 years ago, but the prev tenants made them pretty disgusting.  Any suggestions on the best way to scrub / clean them up, and make them shine again without actually refinishing them.  I wasn't sure if detergent and a mop would harm the wood floors or not.  Any suggestions would be great.  Thanks in advance.

Adam

[Robert A Garcia]

regular cleaning rules apply here as it most likely has polyurethane if finished in the last 20 years.  soap for fats and sugar, I use Coleman stove gas (white gas) for tar or oil based stains, and water for most anything else, go easy on the water as you don't want it to get on the other side of the polyurethane (through cracks and grooves).  I buff and re-coat my rentals almost every time I re-rent as it makes them look beautiful and uniform again.