Was looking around for the best price on the pink stuff. Found reviews on one product were they claim denatured alcohol is listed before propylene glycol on ingredents list, meaning it has more alcohol then glycol. Is this going to be an issue? I'm concerned abt the rubber hoses.

https://www.walmart.com/reviews/product/17179674?page=5

I have been going through this myself and I find that if the label does NOT say it is safe for engines...I avoid it.

Why not just use what they sell at the marine store…starbrite.

many people have been using it for decades with no I’ll side effects.

Yeah...there is 'pink stuff' and then there is 'pink stuff', most of the bargain brand sold at Lowe's/Menard's/Wally World are really only for winterizing water lines. STARBRITE specifically shows using it in engines. West Marine has pink stuff, and purple stuff which is even better.

You WANT the propylene glycol pink stuff. You DON'T want the ethylene glycol pink stuff.

That Supertech stuff is not what u want.

Save the pink stuff for the cabin and RV...

The -75 at Menards is glycol. There -50 I has alchol

Looks like I'll have to spring for the $6+/gal stuff. Thx guys..