This answer has 4 letters and comes to us from the daily newspaper, the N.Y. Times, aka., New York Times crossword puzzle.
Here is the correct answer for the "Old U.S. gas brand still seen in Canada" crossword clue.
After searching the internet using the following sites, www.google.com, and www.ask.com here is what I found.
If this is the correct answer, please click on like button! - ESSO
If need help with another clue, just use our search at the top!