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What was Frank Zappa's or any of the band members favorite sodas mine is definitely Pepsi

Soda pop is not so hot
You know your face will go to pot
With little bumps, your face will break out
You'll be such a lousy make-out
And you'll have to wear that goop
That smells just like a chicken coop . . .
(written by Frank Zappa)

source https://www.ebay.ie/itm/FRANK-ZAPPA-Soda-Pop-is-not-so-Hot-Typed-notes-Original-Herb-Cohen-file-/311722207381

Some oddball brand of soda is mentioned in one of the songs on one of his early albums, but I forget which one.

I remember, now . . . it was Cel-Ray!

Go Cry On Somebody Else's Shoulder
I gave you my high school ring
At the root beer stand

I got some new khakis and I met you
And we went out to get a Coca-Cola . . .

You Didn't Try To Call Me
We were gonna go, we were gonna go out
And get some root beer afterwards, man

What Kind Of Girl Do You Think We Are?
An' my girlfriend, she digs it
With a hot Yoo-hoo bottle

Do You Like My New Car?
and sometimes I even dig it with a Dr. Brown's Cream Soda . . . or a Cel-Ray!

9. The Groupie Routine

Howard: Yeah? Listen now, on the other side of record didn't you say that you get off being juked with a baby octopus and spewed upon with creamed corn, and that your hair-lipped queen-o bass-playing girlfriend with the crossed eyes and the tits on his shirt had to have it with a hot 7-UP bottle or he went UP THE WALL?

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