Quote:
Originally Posted by Mr.ac
? Our blocks are made of aluminum.
But yeah I get the interest. Pretty much heat is the enemy. Keep the heat down you'll have a car that would last well into the 300k mile range. Eventually something gives.
|
Iron in oil doesn't always come from the block. Piston rings, bearing liners, cylinder sleeves are all iron. A lot UOAs can even tell you where the iron in the oil came from, whether its the rigs or cylinder walls or what have you. Some engines have aluminum cylinders coated with Nikasil, but the FA20 is an aluminum block with iron sleeves.