Oil Capacity of R400 Duratec, Wet Sump with oil coiler??

[echoone]

Could anybody tell me the correct oil capacity for an 07 Caterham R400 Duratec with a standard wet sump and oil coiler. The sump is a Raceline one which again I think is standard spec. I've had two different answers from Caterham!!!!

Cheers

[echoone]

Cheers, I to received a new manual in the post which states 4.5 litres!! However it recently had a service from Caterham and I had to drain the oil a few days later due to a slight seep from the sump. When I put the oil back in I measured it as i did and put arond 5.25 litres in. I didn't remove the oil filter and would have lost a small amount in the drain and transfer back in so the 5.5 litres in nearer the mark.

Out of interest the old K series R400 manual states 4.5 litres so I wonder if they just haven't bothered correcting it for the Duratec engine!!