Turnbull election win possible: Howard

Malcolm Turnbull could lead the government to victory at the next election, former prime minister John Howard believes.

But for that to happen party members must put aside their disunity and work together, he says.

Mr Howard suggested divisions within the government stems in part from the 2015 change of leadership when Mr Turnbull rolled Tony Abbott after 30 consecutive Newspolls, a milestone Mr Turnbull is anticipated to reach this weekend.

"I think when you go through the process of changing leaders, it creates a problem," he told ABC 730 on Thursday.

He said he sees no evidence now from within the party that people want another change in leader this time around.

And while he admits there's still an electoral challenge Mr Howard doesn't see the next election as unwinnable if Liberal MPs understand their collective responsibility to work in a united fashion.

"They have got to work together in, I think, a far more purposeful way than has been evident in the last few months," he said.

"It is not impossible."