Here's a reply from a friend....
Yes. I also remember Rocket gas stations and the Gas for Less signs. I recall one in Milwaukee along Forest Home Ave. somewhere east of 27th Street that I saw frequently. Its signage was in glorious neon. Also remember seeing other Rocket stations but don't recall where. I believe Rocket was a local southeastern Wisconsin chain and had no connection to DX. At that time, DX stations were very common in Wisconsin and especially the Milwaukee area. I want to say that the DX's in this area along with the Western/Mileage/Direct Service midwestern chain of gas stations eventually became part of Superamerica. But I'm not sure of that without checking. Yes, I agree that the Rocket filling stations sold gas and a few accessories but normally didn't bother with active service or repair bays.
Greg
