Air filter cleaning

[kev3]

Anybody tell me the best way to clean the oval foam type air filters (the type that fits over the trumpets in the air box) and do they need oiling before they're put back.
Thanks
Kev

[keefer]

clean with petrol, rinse and allow to dry.
then put a bit of filter oil in a plastic bag with the foam and give it a good rub all over