issue with order types

Hi Friends..

I Need your inputs on this issue...

For the warranty order type..

Currently there is a field called 'usage' on the warranty order. If the usage is 200, it means it's a product warranty. That would be like if you bought a washer and something on it failed and it was still under warranty. If the usage is 022, it means it's a part warranty. That would be if you bought a specific part and the part failed within the warranty period. Currently, they all go to the same G/L account and at month end they make manual journal entries to get the dollars into the right account. Is there any way to direct these 2 different types of warranties into different g/l's without setting up new order types?.

Points will be rewarded...

Thank you