[jhayward]

You can get a 172 refitted with a 2L turbo diesel engine which gives about a 38% improvement in range. [1]

[1] https://www.aopa.org/news-and-media/all-news/2015/february/p...

[walrus01]

I did a bit of research on this about six months ago, after watching a video of some guys who ferried a Cessna 172 via Nunavut and Greenland to Western Europe.

Google "thielert diesel engine" and you'll find a lot of good info to start from.

https://www.google.com/search?client=ubuntu&channel=fs&q=thi...