Best radiator fluid for a 230 SL

[McBenz]

I just drained my cooling system and would like to replace the radiator fluid with what works best for our older engines and the aluminum parts related to the cooling system. I see that there is a blue G48 out there that seems to be recommended for MB vehicles. Not sure if its mainly for newer engines or not. Over the years I have used mainly the old style Preston (lime green). Is there a favorite out there for our older, aluminum parts based cooling system?

Thanks,

Mark

[FGN59]

MB sells its own formula referenced MB 325.0 that is the recommended coolant for our engines.

[mrfatboy]

Buy 2. Free shipping👍

https://www.autohausaz.com/pn/Q1030004

[McBenz]

great, thanks guys.

[FGN59]

By the way, it says so on the container, but the formula must be mixed with an equal amount of pure (distilled) water (1 for 1)

[McBenz]

got it.