Sir Rod, 75, recently revealed the pair had not spoken in two years because 73-year-old Sir Elton “had the hump” with him about comments he made about his farewell tour.
Now Sir Elton has devoted an entire chapter of the paperback version of his autobiography Me to their feud.
The old friends stopped talking after Sir Rod said Sir Elton’s Farewell Yellow Brick Road world tour was “not rock ‘n’ roll”.
Sir Elton writes: "I certainly didn’t feel like I needed a lecture on the feral spirit of rock and roll from someone who’d spent most of the last decade crooning his way through the Great American Songbook and Have Yourself A Merry Little Christmas.”
Watch: Rod Stewart insists Elton John snubbed him when he tried to end their feud
He added: “What’s more, I thought he had a f***ing cheek, complaining about me promoting a tour while he was sat on a TV show promoting his own tour.”
The Rocket Man singer claims after months of being angry with Sir Rod for his comments he calmed down, sent him a message saying they had “known each other far too long to fall out over something like that”.
But he received a message from Sir Rod's manager claiming the Maggie May singer was on "constant vocal rest" between shows so was unable to speak on the phone.
Sir Elton pointed out that it didn’t stop Sir Rod appearing on more chat shows and claims he has never heard back from him.
Last week Sir Rod claimed he had reached out to Sir Elton recently in an email, but that his attempts to make peace had been snubbed.
It all began in 2018 when Sir Elton announced he was embarking on three-year Farewell Yellow Brick Road tour.
Sir Rod said on Watch What Happens Live With Andy Cohen: “If I retire, I won’t make an announcement. I’ll just fade away. I don’t think this is a big deal, it stinks of selling tickets...
“It’s dishonest. It’s not rock and roll.”
Watch: Elton John loves staying home and playing boardgames