E s was just a suspicion. The smoking Ferrari engines made the competition suspicious. Was it all right, or did Ferrari find a way to get around the oil consumption limit of 0.6 liters per 100 kilometers? And if so, how? The engine engineers racked their brains about how to outsmart Article 20 of the technical regulations. Until someone had the idea that you could press the oil into the combustion chambers through a 'leaky' seal in the compressor of the turbocharger, but not count it for consumption because the turbocharger is by definition not an engine.
On 14 May, Mercedes sent a request to the FIA. The engine engineers in Brixworth wanted to know whether the oil consumed in the turbocharger also counts to the 0.6 liters. And should this be the case, would the combined consumption of lubricant in the engine and turbocharger have to be taken into account for the consumption limit?
The turbocharger is part of the engine
Charlie Whiting's answer came straight away . The FIA race director made it clear in a circular to the four engine manufacturers that all oils used in the drive unit fall under Article 20. From the perspective of the world association, the turbocharger is part of the engine. Accordingly, the oil burned in the combustion engine and the turbocharger must count towards the total consumption.
The shot from Mercedes was obviously aimed at Ferrari. But he missed his goal. We hear from FIA circles that none of the four engine manufacturers need to convert their oil system or the turbocharger. If someone had cheated in this area, they would have had to modify their turbochargers with immediate effect. A separate oil circuit for the turbocharger was also not found in any of the controls. With that the subject is off the table. The battery affair, however, is still smoldering. But there should still be clarity over the course of the weekend.