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Get a MPGuino to see instant mpg and average mpg. Replace original 12” wheels with newer 13” Geo metro wheels for a better selection of tires and more importantly, a lower final drive ratio. Inflate tires to the maximum pressure stamped on the tires sidewall. Drain transmission and fill with Valvoline™ Synchromesh Manual Transmission Fluid. Install brake pad return springs. Have a all wheel alignment done and set tow in to 0 degrees. Install a remote engine kill & start switch. Install a partial grill block. Install a hot air intake. Make a cardboard engine blanket to retain heat. Remove side door mirror and relocate to the inside.
That should get you started.
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