Fork oil S4 ? how much ?

[jerry]

My manual and owners book states 492ml of oil for the Showa forks fitted to my S4 but all i got out of them was 410ml of oil . I am refilling with 5w and wonder how much to put in 410ml or more .I drained them totally bone dry.Spring and cartidge as well.

[Scotty]

think I just split the litre bottle between the two forks equal

after trying to measure it out (don't think there was actually a litre in the bottle)