Yeah, I know. I've used FP & LC for over 5 years now. Of all the additives/improvers/cleaners/whatever you want to call some of 'em, there are 3 I've used that, for sure, are NOT snake oil & do what they say: Lube Control, Fuel Power, & the ultra-versatile Schaeffer Neutra. Let's make it 4 & include Auto-RX too, but some users have unreasonable expectations, & need to remember that it can't replace worn metal or clean away sludge that isn't there.
Re Regane: Just looking down the road for whenever my FP stash runs out. The Dakota's PO said that every 4000-5000 miles or so he ran a can of Berrymans B12 through the gas- maybe so, maybe not. The FP will certainly clean things up- over time- and is *Great* for keeping everything clean. Don't think I'll give it the shock dose of FP, the truck does seem to finally be responding a little.
No more than I drive these days, my dwindling supply of FP should last me for another year or so.
And alas, the Regane sale price at O'Reillys ended. Guess I'll wait until the next sale!