PEAK is the stuff I got, it seems to only come "pre-diluted"  It is an "HOAT" coolant which is Hybrid Organic Acid Technology.

Your BMW, Porsche, Mercedes Benz, Audi or Volkswagen uses an HOAT coolant.

HOAT coolants are derived from OAT coolants with the addition of silicate to protect aluminum surfaces. Many components of your BMW, Mercedes Benz, Porsche, Audi and Volkswagen engine and cooling systems are made of aluminum including the cylinder heads and radiators.

OAT coolants do not use silicate and phosphate corrosion inhibitors. These coolants have an extended service life and are designed for 150,000 miles of service (or 5 years). Although it should be noted that German Auto Center and most manufacturers recommend flushing or changing the coolant every two years.

https://www.germanautocenter.com/blog/what-coolant-is-right-for-my-german-automobile/

G-05 at $24/gal undiluted at AA would be $12/gal as opposed to the blue stuff at $19.  It says it it HOAT but it is not blue. hmmmm  And they honor the discount codes on it, 20% off so that knocks off almost $5/gal, not a bad deal!

--FT



I'm not sure what other kinds there are


https://www.amazon.com/PEAK-Extended-Prediluted-Antifreeze-European/dp/B08PNN4163?th=1

On 5/29/22 4:36 PM, Kaleb Striplin via Mercedes wrote:
Yes I believe that is correct g05 is no longer specified.

Sent from my iPhone

On May 29, 2022, at 3:30 PM, mitch--- via Mercedes<mercedes@okiebenz.com>  
wrote:

So... 325.0 is G48, or SINOPEC Antifreeze B25.0, or Pakelo Blue Coolant 
Hybrid... (blue)
325.6 is G40, and Mobil Antifreeze Ultra. (pink)
325.7 is Freecor NRC +B (YF06) (yellow/green)

And G05 is no longer specified?

https://operatingfluids.mercedes-benz.com/sheet/310.1/en

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--FT
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