Originally Posted by PJC
Hi Peter,

Good idea to check with MMC what Antifreeze as I had a water leak and used BMW antifreeze only to be told by Brands Hatch Morgan that the antifreeze specified by MMC and used was very different and not compatible - I had to get the car trailered to BHM to have it drained and the correct stuff added! I had no idea how critical the correct antifreeze was. ooo

Allegedly if some non compatible types are mixed it forms gelatinous lumps that can block small internal waterways on modern engines

Jon M