While Palou slowed, Dixon roared ahead and hung on for the triumph, nursing fuel all the way to the finish line.
“I saw he went off in turn nine. We got a little bit lucky with that,” Dixon said. “I knew it was going to be tough. We still had to save fuel all the way to the end so it was definitely way tight.”
Dixon was battling handling issues as well.
“I just had to look at the corner and the car was going to turn,” Dixon said. “I was just hoping the rear tires were going to hold on.”
Marcus Armstrong finished seventh and Scott McLaughlin was 23rd.
Palou, the 2023 Mid-Ohio winner who started on the pole and led most of the race, settled for second with Denmark’s Christian Lundgaard third.
“Just a stupid mistake, a mistake by my part,” Palou said. “The car was amazing all weekend, all race. Everybody did an amazing job on pit stops and strategy. We were running really good. Just lost it a little bit on entry and then really couldn’t get power going on.
“Nobody to blame but me. Just got a bit wide on entry and lost it completely. It sucks. It hurts a lot. It’s still a good day but it hurts to lose it like that.”
There was some consolation for the Indianapolis 500 winner. After 10 of 17 races, Palou -- chasing his fourth season crown in five seasons -- has 430 points to lead American Kyle Kirkwood by 113 with Mexico’s Pato O’Ward third, 125 down, and Dixon fourth, 148 adrift.
Palou has six wins this season and Kirkwood three.
Dixon’s prior Mid-Ohio titles came in 2007, 2009, 2011, 2012, 2014 and 2019.
Palou grabbed the lead at the start with Lundgaard quickly settling into second. They stayed at the front through the pits stops with Dixon moving to third thanks to the fuel strategy.
Palou came to the pits from the lead with 19 laps remaining for a quick fuel splash and returned to the track two seconds ahead of Dixon, setting the stage for the final drama.
The season continues with two oval races next weekend at Iowa Speedway.