F1 manufacturers agree to engine testing rule change after compression ratio row

In December, it emerged that Mercedes had found a possible loophole in the rules that could lead to a performance advantage.

F1 and power unit manufacturers to vote on extra engine tests

As well as Mercedes, Ferrari, Audi, Red Bull Ford and Honda, the FIA and commercial rights holder FOM will also vote on the ...

F1 manufacturers to vote on mid-season rule change over engine battles

It emerged that Mercedes has found a potential advantage with its new engine for the 2026 season relating to the compression ...

F1 engine dispute: FIA propose mid-season rule-change after talks during pre-season testing in Bahrain

Formula 1s engine dispute will be resolved before the season-opening Australian Grand Prix after talks were held in Bahrain ...
Mathrubhumi English

FIA changes F1 engine rules mid-season: New compression ratio checks introduced

The FIA has updated the 2026 F1 engine rules, changing how compression ratios are measured to prevent loopholes.
SlashGear

What Does An Engine Compression Tester Do, And Do You Need One In Your Garage?

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...
autoevolution

F1 Engine Wars: Engine Manufacturers Will Vote on Mid-Season Rule Change

Formula 1's power unit manufacturers will vote on a mid-season change on compression ratios which could significantly impact on Mercedes ...