
The absolute worst gas station. They lie and tell you the bathroom doesn't work. The gas is a rip off and they have a horrible selection of drinks. Don't spend you money here. Bad customer service!!
(3)
$4.99Regular
$5.29Mid-Grade
$5.49Premium
Fuel prices updated 22 hours ago
Grand Mobil, located in Diamond Bar, CA, is a reputable service center within the Mobil station owned by Tim Foster for over 20 years. Offering various automotive services such as inspections, smog checks, oil changes, and battery replacements, Grand Mobil is a one-stop shop for car maintenance needs.
With 12 pumps and amenities like diesel fuel, a snack shop, and complimentary water and air pumps for customers, Grand Mobil ensures a convenient and efficient experience for drivers in the Diamond Bar area.
Generated from their available business information
The absolute worst gas station. They lie and tell you the bathroom doesn't work. The gas is a rip off and they have a horrible selection of drinks. Don't spend you money here. Bad customer service!!
Currently at the mobil right now and the employee is outside smoking a cigarette right by the gas pumps! I literally didn't even fill my tank up I just told my husband I wanted to leave bc I'm not...
Worst prices around. Insanely expensive gas. Go just another half mile to the next mobile (and chevron even) and you will save 0.70-0.80 cents per gallon!!