The national average for diesel fuel on April 1 was $5.490 and that is a strain to NASCAR teams like Kaulig Racing who say it has taken a toll on its intended budget before the season began in February.<br>The military conflict in Iran has led to a surge in prices and while it dropped to just over $5 on April 2 following a national address by the President of the United States offering that the ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/kaulig-racing-says-fuel-prices-put-a-dent-in-nascar-budget-/10810567/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=www'>Keep reading</a>