On the east coast, gas stations charge as much as $1/gallon extra for premium over regular. For example, if regular is 3.19, premium will be 4.19
For a 15-gallon gas tank, that's a $15 difference. But Walmart has VP Octane booster for 10.97
For a 15-gallon gas tank, that's a $15 difference. But Walmart has VP Octane booster for 10.97