DAYTONA BEACH, Fla. — SPOILER ALERT: Stop reading if you believe Tony Stewart is an agile, limber and graceful athlete.

That wasn't Stewart doing a split in his new Mobil 1 commercial with Formula One driver Jenson Button.

And he doesn't actually eat "soda cookies."

The spot, which began airing last month, shows Stewart using Mobil 1 oil to lubricate his hips and legs before sliding into a full split to dunk his cookie in a glass of soda.

"Let's make no mistakes about it — if I got down there, I would still be down there," Stewart said Friday at Daytona International Speedway. "They did not ask me to do that. They had me get down on the ground for the camera shot, but they had green screens. They had some male gymnast do it, I don't know who it was, I didn't want to be there when he did it."

Mobil 1 currently has two ads out with Stewart and Button, and the second one has the drivers comparing their fitness levels with Stewart easily riding a stationary bike. Both scripts were a surprise to Stewart when he showed up to film.

"It actually was a lot of fun shooting the spots because I never look at what the spots are supposed to be and I get there and I'm starting to read the scripts and it's saying 'Tony is getting on an exercise bike, he's doing splits' and I'm like 'Which Tony is doing this? Is there another Tony?' " he said.

And the soda cookies were new to three-time NASCAR champion who has never tried to hide his love of fast food and snacks.

"I can't say that I've ever sat down and grabbed a coke and grabbed Oreos ... I've ate Oreos and I've chased them with coke, but I can't say that I've done a lot of dunking," he said. "It actually was pretty good. I might have started a trend now."