[Phakeflyer]

I have a 2003 Boxter S 60K miles and found a milky yellow sludge in my coolant, took it to the Porsche dealer who did a leak down and oil cooler test, both were OK. The service dept pulled the plug and determined " new engine required, cracks in the block suspected, $19,000 please!" I have seen posts about other cars with the yellow sludge due to mixing or cheap antifreeze which due to my ignorance is a definite possibility. I'm skeptical about accepting cracks in block without definite proof, but will accept inevitability if no one has any other thoughts. I've looked into replacement engines, but don't want to buy a used engine just to go through the " bad engine scenario" again a short time later. Is it worth it to replace the block and rebuild the engine, or bite the bullet and offer the car up for parts? Any suggestions?