RE: do i need to change fuel?
The reason I grinned at the prospect of a database is that there are so many different variants of someone's home brew cleaner that it would be almost impossible to get them all straight.
Can you imagine, RCU-Joe #1 says use this forumua. Then RCU-JOE#2 says "Well, that's fine, but I use an ounce of alcohol per gallon and it works better than yours". Then in comes RCU-Joe#3 that says, "this is all crap. I buy glass cleaner from the Dollar store and add one cup of ammonia and THAT works best".
I may give it a shot, though. That last series of posts had about a dozen (exaggeration I"m sure) formulas.. then looking back at previous threads where cleaners came up, well, anyway, you get the idea.
Let me ponder it and if I do it, I'll get it posted here.
CGr.