Ha! Huge tank for sure. I fill mine up every two weeks. At two weeks, it's at half tank or just below it. Depends on how many times I drive it on my days off. Mine has done Texas to Oklahoma. Stopping only once for a refill due to a "break". Drinks sure do make for frequent breaks. Hope to get a 1000 mile trip on mine soon. I want to run some strong injector cleaner.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)