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.
If you use parentheses, open them right before the e.g. or i.e. and close them after you have given your example or alternate definition. For American English usage, you should always put a comma right after both i.e. and e.g. as shown in the examples above.