Peter, the son of Australian businessman Frank Lowy, was interviewed on BBC's Don't Go To Bed Just Yet podcast to discuss Leeds' fortunes this season in the Premier League, as well as other issues regarding the Yorkshire club.
However, during the discussions, he tied his footballing colours to the mast regarding Glasgow's top two when he touched upon a recent experience with Elland Road legend Eddie Gray at Celtic Park.
"I like to answer questions. I’m not an investor in Rangers, I’m not involved in Rangers – I don’t have anything to do with that except that I’m a Celtic man," Lowy admitted. "When you see Eddie (Gray) and I sitting there together… That’s not why I didn’t invest; it just wasn’t for me. One of the best nights I had actually.
“Eddie and I went up to Celtic Park last season during the Champions League campaign. They played RB Leipzig, I think. And if you want to imagine what you can do at a stadium and imagine where you can take a club, then that stadium is spectacular, the noise there, the people, the commitment.
"If we can get some of that up to where we are at Elland Road, we’ll be doing really well.”
Last summer, Rangers were taken over by a consortium led by Andrew Cavenagh, as well as backing from 49ers Enterprises, the investment arm of the San Francisco American football side.