The national average price for diesel gasoline increased slightly for the second consecutive week, rising by $0.001 to $3.540 per gallon, following a previous increase of 4.8 cents. This comes after a three-week decline totaling 8.2 cents. Over the past month, the average has fluctuated, with notable drops and increases. Annually, the current average is down 55.2 cents. Additionally, WTI Crude is trading at $69.17, up from $68.82 last week.