Currently with a full fuel tank the longest run on fuel for AI and humans is around 32 mins with green flag running. If you fuel save you can maybe stretch it to 35 mins, but that's extreme fuel saving and probably losing enough in pace to not make it worth it. IRL the car ran closer to mins per for fuel stint depending on fuel savings. I personally think the fuel usage should be very similar to the LMP2 Gen 1 cars. Both cars use NA V8s. I know the Caddy uses a 5.5L to the Gibson 4.2L, but in IMSA races both LMP2s and DPis were around 40 min full fuel stints. Currently the LMP2 Gen 1 car can get close to that 40 min stint, but the Caddy isn't anywhere close. If the Caddy's fuel efficiency was closer to the LMP2 Gen 1 it would allow for more natural races to occur between the two classes. Here is an example where the #10 WTR car was able to do a couple formation laps + 40 mins almost on the dot of green flag running before pitting for the first time at Leguna Seca. If the time stamp doesn't work it's at the 45:45 moment in the race. If we look at the alkamal results from this race you can see the two Caddy DPis are able to finish this race in 3 pit stops with only 3 laps of the entire race being under caution. Stint length range from 34 mins to almost 45 min. https://imsa.results.alkamelcloud.c...ship/202011011305_Race/20_Drive Time_Race.PDF