 The 95.3 MNC Gas Gauge. In South Bend, the Phillips 66 on North Portage is at $3.28 if you use cash. It's $3.39 in Goshen at the Martins on Basher Road. $3.35 at Granger's Costco. The BP at 23 and Furs at $3.54. In Warsaw, the Marathon on South Buffalo Streets at $3.48 for cash. And in Niles, $3.46 at the Murphy USA on South 11th.