I get gas at Moslem owned stations because there is no other sort hereabouts but I do not do pre-pay unless there are two of us and one can go inside and hold the money until the fueling is complete. Many of these people will take your $20 bill and when you only pump $14.87 they haul a sign out from behind the counter that says "No change given for PrePay." If you get your cell phone out and ask the next person in line for the Sheriff Dept. number you will get your change.
I have no problem with Sikhs and Hindus. They do not have holy books that prescribe chicanery and theft.
Of course it does...I would rather give my business to a neighbor or fellow American whenever I can. Sikhs hate the Muslims & have fought against them in India. My son in law is a Sikh too which is another reason I won't do business with the Muslims.