Thanks everyone.
Bert, the Tamiya wash was something I bought a couple of years ago and it's in such a large bottle that it will last a long time and I hate throwing things out. Yes it's aggressive but so far it's been manageable, just. I have found that, of all the washes I've used so far, and yes, I've used thinned oils, nothing compares with the Tamiya stuff for how well it runs along panel lines, ribs, and rivets but I also don't like how it attacks the gloss coats I use if left on too long. As I said, it's good if I'm careful but there may come a day when I screw up.