Antifreeze VALVOLINE or OEM BMW

The blue stuff is definitely better than the green from my experience. I use the overpriced bmw shit but I think you could probably use the cheap blue stuff just as well.

I have two gallons of this I've used in my 2009 B6 Passat that is leaking coolant. I don't drive it much, just once in a while. I just don't have the funds to fix the leak, which is likely the water pump. This coolant works just fine for me!

Don't buy BMW coolant it's overpriced just like everything else they sell. Blue coolant is preferred but the premixed green stuff isn't going to cause catastrophic meltdowns. My 97 328i has the green stuff and I've got no issues after 196k miles.

I always use the OEM coolant that I pay an arm and a leg for from the dealership. For a few dollars it’s not something I want to chance in vehicles (especially my E46) with such sensitive cooling systems.

I run it in my 2010 Tundra. after much research and not wanting to spend the $$ on overpriced toyota branded coolant I swapped out the system when I hit 100k (Valvoline asian). That was maybe two years ago. 30k miles later no issues.

There's Zerex (Valvoline) Asian car coolant (prediluted) that's made in 2 colors, blue and red, and it's supposed to be compatible

Call Valvoline (Zerex), which makes both green and Asian coolants. Most likely the green you bought is not like the green sold 20 years ago.

From the manual: "The manufacturer recommends using MOPAR Antifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent." Remember that the Routans are really Chryslers in disguise, so no need to go exotic brands on fluids. So you can try this: Valvoline Zerex ZXGO51 G-05 Antifreeze.