6-row Boil Time

I searched but couldn't find anything. With Pilsner malts you need to boil for 90min to avoid DMS, correct? What about 6-row? Is 60min fine or would it be better to boil for 90? If it doesn't matter I'd rather do 60 to save money on propane, but if I should do 90 I'll do 90. I try to keep costs down without sacrificing quality at all. I will be brewing with 6-row pretty frequently now trying to perfect my Kentucky Common. Thanks.

I have never used it, but I don't believe that 6-row is any different from 2 row in this regard.