Non compliant fuel to be allowed at F1 tests to save budget cap problems

[John S]

FIA to allow non-compliant fuel at F1 tests this year to keep costs in check.
Now does that mean not green, i.e. non-Bio fuels? 

If the figure of $100k for each team per race weekend for sustainable all Bio fuel is correct then I guess teams can easily burn through $200 to $400k at each of the 3 tests, that's if they manage to do plenty of all day running. 

However might this negotiated setlement with FIA be a clever trick from one or two fuel suppliers to sandbag opposition by not showing real potential of their new fuels?  ........or am I just an old cynic?? 

https://www.motorsportweek.com/2026/01/15/fia-to-relax-key-f1-rule-change-in-pre-season-testing-report/

[lkjohnson1950]

I've found that you can be an old cynic and still be right. Wouldn't doubt for a minute that fuel suppliers don't want to tip their hand in preseason.

[Andy B]

The "sustainable" fuels will never be realistic at that price and if they are not running them at tests it'll not show if they are any good.
The cost cap is not realistic!