Leftover pink Audi coolant

[gaber6]

Probably a stupid question but is audi coolant compatible with the Toyota coolant?
I have nearly 2 gallons already 50/50 diluted from previous projects. Was for all aluminum audi 4.2 v8 and I have the v6 now.

EDIT: Actually a little google search made me think I should just pick up some Toyota coolant from the dealer. I'm getting a little waterfall sound on startup but no codes or other problems yet other than slight coolant loss over 10k miles.

 

[99problems]

Probably a stupid question but is audi coolant compatible with the Toyota coolant?
I have nearly 2 gallons already 50/50 diluted from previous projects. Was for all aluminum audi 4.2 v8 and I have the v6 now.

Some quick research makes it seem like the Audi coolant has silicates vs. the acids in the Toyota coolant (despite their colors being similar) so I don't think they will play nicely together (and you might just end up with a lot of nasty precipitate sludge). The potential headache isn't worth the slight savings here.