What I mean is, would 1500 miles be ok to leave Auto-RX in my tranny? I was only going to leave it in for 1000 miles per Frank's instructions but UPS lost my package full of jeep/tranny parts so I'm going to have to wait a little longer. I was planning on doing the flush over the weekend. My tranny has never had any additives other than the auto-rx I added. This is for my '96 Jeep Grand Cherokee 5.2 with the 44RE tranny. I hope its not going to hurt.