I don't know of any cast iron parts in the turbocharged Mazda 4
cylinder.  The crank, rods, pistons are forged.  The block and head are
aluminum.  It has direct fuel injection.  pistons have come a long ways
while you were napping.  ds [Don Sherman]

Yes that is what I thought. Did you read the article?
You do get SAE Automotive Engineering mag do you not?
Here it is again. Clearly states lower end replaced by steel.
Why did they not start with the turbo engine?
Still 2000 miles is not 4000 miles.

Is the turbo engine 2.3 L or 2.0 L? I think
these are different engines. This is the 2.3 L engine.
Not the turbo engine.

Paul Lamar ...No rotor no motor.

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