What is the best solution when turbo have a little oil leaks. I'm using 6A12TT engine. just checked this morning the front turbine got little bit of oil leak. The sysmptom is you get little bit of smoke coming out when warming up but no more when engine really hot. Checked head no trace of oil leak.So should i service them both? cost around rm500 per piece, or to have a piece of mind should I changed to a new one set of turbine with similar spec? or is there any after market turbine that fit right to the original mounting? if not what's the possible reliable solution?