Having difficulty finding proper reducer- compatibility?

[Pookster]

Paint: PPG Deltron DBU Universal basecoat (the website says I should use DRR Reactive Reducer) and one of these clear coats http://www.ppg.com/refinishftpsite/docs/p-152.pdf

The local paint shop guy I visited said they were "all the same"-this seems skeptical to me, so I thought I might ask you guys. CAn I use any reducer?

 

[JK5]

I just used DBU on my wheels..
You have to use DRR Reactive reducer..

1170 is the mid-temp..