I wouldn't risk it. If the machine breaks down and it's determined the cause is residue build up from regular detergent, it voids the warranty. You would think watered down detergent would be the same as HE but it is not, it still will create suds and wears down the machine quicker in the long run. HE also has concentrated anti-sudsing agents in them, it isn't a watered down product. Just my opinion, especially if you have a more expensive front end loading machine to consider.
