I have been building in NE, WI. for 19 years and have not seen a worse product ( performance wise ) than fibercement siding. We took training classes from the two leading manufacturers, and still have problems with the product cracking. And if you ask the company for warranty – it all boils down to installation. If the company that sells it can’t train you to put it on correctly – good luck to the do-it-yourselfer.
We have been using SmartSide for four years now, it has held up good, easy to work with, and looks nice. Again, alot of bad lloking products – come from bad installation.
Read up on the installation of SmartSide before hand – it is a very neat product.

Is changing the fluid really a mileage issue vs a water in the oil issue?