Aussie Power denies involvement in IndyCar scandal

Star Australian IndyCar driver Will Power has denied being involved in the scandal that's rocked IndyCar racing in the US.

Queenslander Power said on Thursday that he was unaware of any manipulations to Team Penske's push-to-power system until after last weekend's race at Long Beach and he was adamant that he never illegally used the mechanism.

Team Penske is under heavy scrutiny following the March 10 season-opening race at St. Petersburg, Florida, in which American Josef Newgarden was stripped of the victory and New Zealander Scott McLaughlin, who finished third, was also disqualified.

The 43-year-old Power finished fourth and while his result was not thrown out, he was docked 10 points and all three Penske drivers were fined $US25,000 ($A38,000).

Power has not been accused of any wrongdoing by IndyCar but was punished because the manipulated systems were found on all three Penske cars following Sunday morning's warm-up in California.

"I was disappointed to learn about the penalty that we received this week from IndyCar," Power wrote on social media.

"There was an oversight by our team and I was unaware of the situation until it was brought to our attention following Long Beach.

"As per the rules, I did not utilize the P2P capabilities during any start or restart during the St. Petersburg race.

"While I accept the penalty, I want it to be known that I did nothing wrong and followed the rules."

Team Penske has maintained that the push-to-pass system on its three Chevrolets was utilised in a test session for upcoming hybrid engines and then mistakenly not replaced before the start of the season.

It remained on the cars for three races and Newgarden onboard videos clearly show the reigning Indianapolis 500 winner illegally using push-to-pass to gain position on at least one restart.

McLaughlin, in a Wednesday night statement, said he used the system for less than two seconds and gained no positions on the track. He said he pushed the button out of habit.

IndyCar prohibits the use of the push-to-pass system on starts and restarts and the button isn't even supposed to work on those occasions.

The issue was discovered on Sunday in California when a glitch in the system knocked push-to-pass out on all cars except the three Penske entries.

IndyCar then examined the units, found them to be illegal, and forced the team to correct the systems before the race.

Roger Penske, who owns the race team, IndyCar and Indianapolis Motor Speedway, told The Associated Press "I am embarrassed" by the scandal.

Newgarden has yet to address the issue but a Friday morning news conference has been added to his schedule at Barber Motorsports Park in Alabama.

IndyCar has yet to present the data that proves Newgarden manipulated his way to the victory. The disqualification dropped him from first to 11th in points.

Newgarden, in addition to being the reigning Indy 500 winner, is a two-time IndyCar champion and in a contract year with Penske.