Lets talk price. For those that say IUDJ "costs less" here is the math:
Gary Dean's Infinite Use Deatil Juice Concentrate (8oz concentrate - $29.99):
8 oz makes 3.2 gallons (2.5 oz per gallon of DI water -or- 0.625 oz per 32 oz of DI water)
$29.99/(3.2 gallons)= $9.37 per gallon
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Pinnacle 16oz Concentrate(16oz concentrate - $17.99):
16 oz makes 4 gallons (4 oz per gallon of DI water -or- 1 oz per 32 oz of DI water)
$17.99/(4 gallons)= $4.50 per gallon
.... So, just to clarify IUDJ cost a whopping $9.37 a gallon (if you buy 8oz bottle of concentrate) and Pinnacle Waterless Wash costs $4.50 a gallon (if you buy 16oz bottle of concentrate).
Based on this, Pinnacle is less than HALF the price of IUDJ. Now, both product come in other sizes. If you bought the next size up (16 oz) IUDJ it would make 6.4 gallons. That comes out to $6.25 per gallon. Still, about 39% more than Pinnacle based on their entry level size.
Lets say you bought the next size up of Pinnacle Waterless wash Concentrate (64oz). That would cost you $49.99 (plus you get a free spray bottle - worth $5 or so). With 64oz of the Pinnacle you can make 16 gallons of waterless wash. So, that comes to $3.12 per gallon. Still paying less than HALF per gallon compared to the 16oz concentrate of IUDJ.
Lets say you bought a gallon of IUDJ concentrate. It would cost you $159.99. It makes 51.2 gallons of waterless wash. That comes out to $3.12 a gallon.
If you bought a gallon of Pinnacle Waterless Wash Concentrate you would pay $59.99 (also includes free spray bottle). It makes 32 gallons. That comes out to a measly $1.87 a gallon. That's about 40% LESS than IUDJ (based on gallon size of each).
The Final Analysis:
Pinnacle Waterless Wash is cheaper than IUDJ. IUDJ does come in other sizes - so you can do your own math. But wether your just testing the products out (getting the smallest size), or buying in bulk (gating the gallons); Pinnacle is just plain cheaper, period - often close to HALF the price of IUDJ.
IUDJ costs 40% more if you buy it by the gallon than Pinnacle, and it costs over TWICE as much if your buying the smallest size of each just to test it out.
...IUDJ may be a fine product, but its in NO WAY cheaper than Pinnacle Waterless Wash with Carnauba. This does not take into account free shipping promotions and percentage off sales AG frequently has, do they ever do that with IUDJ? Dunno.