Even with petroleum diesel at $4 per gallon, farm-based renewable fuel can't compete on price. By Marianne Lavelle. + More. The retail cost of highway diesel fuel is $3.99 per gallonâthanks to tough environmental rules and strong global demand, especially in Europe.The national average retail price of diesel hit an all-time high for five weeks in a row, is above $4 per gallon in plenty of places, and is up 50 percent over one year ago.he national average retail price of diesel hit an all-time high for five weeks in a row, is above $4 per gallon in plenty of places, and is up 50 percent over one year ago.
When the day of the month and the year appear side by side, a comma is used to separate them. For example, in July 21, 2008, a comma separates 21 and 2008.. Use a comma to separate words. When the day of the week and the month appear side by side, a comma is used to separate them: Monday, July 21, 2008.
Report Abuse. 1  Yes, I would put a comma between the date and time. Or, instead of a comma, you can use at, like the first person suggested. 2  yes. nashville_bound Â· 8 years ago. 3  sunday-monday 8:h am to 5h pm. Claude Â· 2 years ago.  Nope! no need to. Differential Equation Â· 8 years ago.