New engine build... started... ran for 5 minutes.... small oil leak around sump / gearbox side.... could be sump but could be rear main seal.... did have a new one fitted (not by me. By garage) so what do I do!? Could risk driving it on short journey see if it stops? But would this risk oil contaminating the brand new clutch!?? Really stuck for ideas! Is it common for these seals to be dodgey? Literly only got 4 weeks til mapping with bill.... and havnt got a single mile on her yet... its gunna be a close one hah! Check my build thread for more info on the build... thanks for any help james.