Andy Granatelli pours champagne on himself after Richard Petty drove his car to victory in the 1973 Daytona 500. (AP)

Andy Granatelli, a flamboyant race-car driver-turned-businessman who became a household name because of commercials for his STP fuel and oil additives, died Sunday at a hospital in Santa Barbara, Calif. He was 90.

He had congestive heart failure, his wife, Dolly Granatelli, said.

Over the course of his career, Mr. Granatelli was inducted into 19 engineering and motor-sports halls of fame, including, in 2002, the one at the Indianapolis Motor Speedway.

A natural promoter, he designed and owned cutting-edge cars raced at Indy and marketed his achievements with flair, decking himself and his crew out in pajama-like white suits covered with red STP stickers.

The globally broadcast image of the attention-grabbing outfits was “the best thing that ever happened to STP or the speedway,” Mr. Granatelli said in a recent interview. “To this day, it makes the covers of magazines.”

Mr. Granatelli wrote a 1969 autobiography titled “They Call Me Mr. 500,” but he drove at the famed speedway just once, in 1948 — and crashed in the qualifying rounds. He broke both shoulders and lost 11 teeth. At the time, he owned a small Chicago garage but was billing himself as Antonio the Great, Italian rocket-car driver.

Despite the mishap, Mr. Granatelli soon was one of the best-known people in the sport.

“He understood better than anyone the spirit and challenge of the Indianapolis 500 and had a remarkable ability to combine innovative technologies with talented race-car drivers to make his cars a threat to win at Indianapolis every year,” J. Douglas Boles, the speedway’s president, said in a statement.

“Andy leaves a legacy of historic moments that will live forever in Indianapolis 500 lore,” Boles said, “including his famous turbine that dominated the 1967 Indianapolis 500, the Lotus 56 of 1968, and giving the great Mario Andretti a kiss on the cheek in Victory Lane after his 1969 win.”

The kiss, an exuberant smooch that made the papers worldwide, was classic Granatelli, the late Los Angeles Times racing writer Shav Glick wrote in 2000.

“Granatelli, all 300 pounds of him,” Glick wrote, “kissed Mario Andretti in the winner’s circle, and made STP such a familiar name that when Neil Armstrong was about to walk on the moon, it was rumored the first thing he might see would be an STP sticker.”

Although the Federal Trade Commission ultimately questioned STP’s effectiveness, Mr. Granatelli, its president and chief executive, was the ultimate pitch man, handing out STP hats and T-shirts and donning his trademark trench coat in its ubiquitous commercials. In less than a decade, he boosted its annual sales from $2 million to $100 million.

In an Autoweek interview two years ago, Mr. Granatelli said the personal touch was sadly missing from today’s racing scene.

“It used to be in the 1950s and ’60s that you could watch a car go by and tell who the driver was by the way he sat in it, upright or lying down or whatever,” he said. “You can see none of that now, because the car goes by so fast, and the driver is hidden down in that hole. Then the stupid driver gets out of the car, takes his helmet off, puts on a hat and sunglasses, and all you can see is the tip of his nose and his lips. We’re supposed to pull for a nose and a set of lips?”

Anthony Granatelli was born March 18, 1923, in Dallas and grew up poor in Chicago. He and his two brothers, Joe and Vince, took to cars naturally, he once told an interviewer.

“Finally it got to where we could overhaul a whole engine right there in front of someone’s tenement,” he said. “Joe would lie under the car in the snow and we’d drop the whole block, and Vince and I would dance around fixing things and blowing on our fingers to keep warm.”

Over the years, Mr. Granatelli held many positions in the racing world. He was vice chairman of NASCAR and head of the Hurricane Racing Association. As chief driver and engineer for Studebaker Racing, he set 400 speed records, according to the International Motorsports Hall of Fame in Talladega, Ala., which inducted him in 1992.

When he was 62, he drove a street-legal 1982 Camaro more than 241 mph at a test track in California. He said it was the car he used to commute to work every day.

Cars he sponsored twice won the Indianapolis 500, and his drivers included some of racing’s biggest names: Richard Petty, Gordon Johncock, Al and Bobby Unser.

After Union Carbide acquired STP in 1985, Mr. Granatelli started Tuneup Masters, a chain of low-cost garages.

He retired from business 27 years ago, his family said, and settled in Montecito, Calif.

Survivors include his wife; two sons; a brother; and three grandchildren.

— Los Angeles Times