Originally Posted By: MrQuackers
My current OCI in my SL2 was 1 quart of MMO, with Mobil 1 TDT 5w-40 and a bottle of STP HM. Initially it burned off at a slightly higher rate but now the rate is diminishing at an improved rate. I hope to get the consumption rate to >2k miles per quart.
I have been doing a lot of engine braking on deceleration hoping that helps in this process.
Real sludge collects in the sump, so what is in the Pics looks like residue from the use of a conventional base oil that might have been run a bit too long.
If the engine has a turbo I would not use a drive around Scourer like Marvel MO (Or the Liqui Moly equivalent). Amsoil and Liqui Moly both make very good idle use only flush additives that are used just before an oil and filter change. So unless you need to drop the sump because of lumps in the oil, or a flickering low oil pressure warning at hot idle, all you need to do is either a few short runs with Mobil 1 (Or Penn Ultra) OR use an idle flush.
If you mix 2 additives and an oil all made by different companies it's anyones guess what the result will be, as the chemical iteractions will be far too confusing for any Tribi guru to figure out.
My current OCI in my SL2 was 1 quart of MMO, with Mobil 1 TDT 5w-40 and a bottle of STP HM. Initially it burned off at a slightly higher rate but now the rate is diminishing at an improved rate. I hope to get the consumption rate to >2k miles per quart.
I have been doing a lot of engine braking on deceleration hoping that helps in this process.
Real sludge collects in the sump, so what is in the Pics looks like residue from the use of a conventional base oil that might have been run a bit too long.
If the engine has a turbo I would not use a drive around Scourer like Marvel MO (Or the Liqui Moly equivalent). Amsoil and Liqui Moly both make very good idle use only flush additives that are used just before an oil and filter change. So unless you need to drop the sump because of lumps in the oil, or a flickering low oil pressure warning at hot idle, all you need to do is either a few short runs with Mobil 1 (Or Penn Ultra) OR use an idle flush.
If you mix 2 additives and an oil all made by different companies it's anyones guess what the result will be, as the chemical iteractions will be far too confusing for any Tribi guru to figure out.
Last edited: