If you are coming down 83, when you get to Coshocton, you take 16 for a few miles to connect up to 83 S. On 16 there is a Marathon that we could me at
https://www.google.com/maps/place/Marathon+Gas/@40.2556897,-81.8703039,13.08z/data=!4m5!3m4!1s0x0:0x3b97aec9352e0a87!8m2!3d40.2708815!4d-81.8770419
Does the work for you?