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.
Rule 1. Use commas to separate words and word groups in a simple series of three or more items. Example: My estate goes to my husband, son, daughter-in-law, and nephew.Note: When the last comma in a series comes before and or or (after daughter-in-law in the above example), it is known as the Oxford comma.Most newspapers and magazines drop the Oxford comma in a simple series, apparently feeling it's unnecessary.o comma is necessary for just the month and year. Example: It was in a June 2003 article. Rule 7. Use a comma to separate a city from its state, and remember to put one after the state, also. Example: I'm from the Akron, Ohio, area.