According to The Times of Israel, "The Americans filled it up with diesel, rather than petrol [gasoline]." The report The Times referenced stressed that it was the Americans' fault, not the Israelis'.
The disabled limo was swapped out for a back-up, and Obama's busy itinerary in Tel Aviv and Jerusalem on Wednesday was unaffected. The Secret Service says its advance teams plan ahead for these types of glitches.
"This is why we bring multiple vehicles and a mechanic on all trips," said Secret Service spokesman Brian Leary.