Which DG soap in foam gun?

I will be running out of my car wash soap this season and want to get DG 901 (regular) or 591 (marine). I am interested in which one will perform well with a foam gun?

 

DG #901 works well is is cost efficient.

 

I've read the marine doesn't foam like the 901.

 

The Marine soap is not a good foaming soap... use the 901 for good suds

 

Hey Richy.
When I run out of soap I'll give this one a try:DP Xtreme Foam Formula High Yield Foaming Auto Shampoo- Foamaster gun car wash
I've heard it gives thick foam if that's what your after.

 

I looked at that, but my parsimonious (cheap) nature won't allow me to pay almost 2X's what Dg soap is..especially when it comes so highly rated. That's why I was looking to choose between the 2 DG products....thanks though!

 

Richy..the 901 will foam better...reason being the Marine is made not to suds up much for use on the water...but its a better cleaner...you do not want a soap that suds like crazy if you washing your boat while in the water...lol...the greenpeace people will come...

901 foams real nice...you can add a oz of the marine soap to the 901 for a bit extra cleaning also...the 901 will still foam up..

Al