Just got done changing the oil on a friend’s 06 Cayenne S and just read up on some supposed cylinder scoring issues plaguing multiple different Porsche engines. Apparently the block is an Aluminum-Silicon alloy and if the hard silicon layer is worn out the engine begins to lose compression.
A couple of my old MBs had their blocks made with the same kind of technology and I’ve never heard of this being a problem. When you see those cars at the junkyard with heads off they usually have an impeccable cylinder finish, whereas apparently all porsches suffer scratching to some extent.
Some especially seasoned forum warriors are saying that LM Ceratec of all things have restored compression, oil consumption and overall worked miracles. Would there be any additive preferable for this sort of application?
A couple of my old MBs had their blocks made with the same kind of technology and I’ve never heard of this being a problem. When you see those cars at the junkyard with heads off they usually have an impeccable cylinder finish, whereas apparently all porsches suffer scratching to some extent.
Some especially seasoned forum warriors are saying that LM Ceratec of all things have restored compression, oil consumption and overall worked miracles. Would there be any additive preferable for this sort of application?
Last edited: