300SDL Coolant
 

When i do a coolant flush, is the Mercedes Coolant the only answer, or can i buy another that meets Mercedes Specs at a lower price?

1987 300SDL

Zerex G-05 is another alternative to the Mercedes coolant; in fact, I think it is the only other option. I forget who makes it though..one of those companies that you can find anywhere. However, I have never seen it in person, and people on the forum have noted that it can be hard to find. Perhaps NAPA?
I also don't know if there is a price difference, but I think it is cheaper.

The Mercedes coolant itsn't that expensive. I just got mine at the dealership. I didn't want to spend time tracking down an alternative.

-Jason

Zerex G-05 is the Mercedes coolant in a Zerex bottle. NAPA is where I've found it.

NAPA, O'Rileys, Murrys, AutoZone, etc. They all have it or can get it.

$10-13/gal

Zerex = Valvoline
 

G 05

Prevalent everywhere...in Gold Plastic gallon jugs.

("Once in a While" AutoZone will have an online coupon...Two for One)