I don't think NaOH is any more expensive than Koolaid... Let's do a little math here...
I bought a 1 lb container of NaOH for $3.99 at Ace Hardware. I put 1 TSP in a gallon of water. I'm guessing here, but I would think you'd get approx 100 TSPS from the lb container. At a cost of $0.10 a pack of Koolaid, & if one pack did as good as 1 TSP of NaOH, but I doubt it, .10 x 100 = $10. NaOH is way cheaper, not to mention all the who knows what is being put in your electrolyser from the Koolaid.
1998 Ford Ranger 3.0 liter V6
Modified Smack design installed 6/20/08
Modest gains of about 1.5 MPG (17.8 to 19.3)
No sensor controls (yet)