I have the same size tire 175/70-13. Mostly because I thought the wider tire would be better on the grooved concrete roads. The past 6 months they have repaved everything so this isn't a problem anymore. Back to 155/80-13 next time around.
8% increase of FE on a lowered car? That seems like a lot. If it's true, then I guess I'm overdue for a lowering. 5 mpg extra would be great. Mostly it is dry out here, but we do get snow. It's a gimme to drive the 4by when things get ugly. A lowered car would high-center too easy. I'd like to see the data (before/after) of someone who lowered their Metro.
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