Russian diesel cannot reach American consumers.
The tl:der is - politicians made sure the average Joe would pay extra for diesel.
Donald Trump's plan to supply Russian diesel fuel to the US has stalled: 0 tankers have arrived at US ports. Tankers carrying Russian fuel stopped at sea or turned back after American energy companies, banks and port operators refused to accept the cargo, fearing legal and reputational risks.
Back on October 9, Trump said that he reached an agreement with Putin to supply diesel fuel to the American and global markets. Trump ordered the issuance of a temporary approval from the Ministry of Finance, the exemption for diesel from the US sanctions until April 2027. But the American bureaucracy made it possible to bring the extra diesel into Israel to lower the prices.
While Russia cannot sell the diesel fuel to the USA - Russia can sell it elsewhere, thus slightly reducing fuel prices in the world.