Whiting: We closed down things they were able to do

However, Red Bull F1 chief Christian Horner questioned the capacity of the governing body to monitor the regulation during qualifying, which many suspect this is when Mercedes and Ferrari take advantage of the loophole.

F1 race director Charlie Whiting is confident that his race officials can keep things in check during grand prix weekends, “We've closed down all the things that they were able to do last year.”

"There was no real oil spec last year, now there is. Now they have to approve oils. We've tightened up the engine rules in Article 5 of the Technical Regulations, and we've also routed the breather that can no longer go back into the air intake which was the biggest issue."

"It has to go out the back like virtually every other racing car in the world. And we've told them they can't use more than 0.6 litres per 100 km. All those things combined I think will do the job."

"[For qualifying] you've got a small amount of laps, so if you're looking at a percentage you've got to try and detect smaller quantities that have been used. That's a challenge."

"We've made them all fit homologated oil sensors in their main oil tanks, but they've got auxiliary oil tanks as well, so we've got to be able to check those too."

“It's just a matter of detailed checking just to make sure that they are respecting the 0.6 even over short distances."

With regards to chaos when doing race restarts predicted by Haas driver Romain Grosjean, "No driver has spoken to me about it. It seems a bit of an odd comment to me, because they all put new tyres on whenever there is a red flag."

"I am not too concerned about it. I think the grip was quite low in Barcelona anyway, and they didn't put new tyres on because it was a quick procedure," concluded Whiting