What Oil Type To Protect Catalytic Converter?

[Arc]

So this will fix the OP's problem?

What is the problem exactly?

So this will fix the OP's problem?

What is the problem exactly?

It will clean up the catalytic converters from excessive oil burning. Changing oils will do nothing for the problem.

 

[kschachn]

It will clean up the catalytic converters from excessive oil burning. Changing oils will do nothing for the problem.

Do the catalytic converters need cleaning up from excessive oil burning? Is that the problem here?

Will your method reverse phosphorus poisoning of the platinum metals?

 

[goblin]

So does the ATF get in a converter that's heated to 1600+ degrees directly in liquid form, or has it long been vaporized ?

Will your method reverse phosphorus poisoning of the platinum metals?

Very unlikely.

 

[BMWTurboDzl]

O.K. Let's say it that way.
However, the ESP oil is sold in Europe initially (like 15-20 years ago or more) and then brought to the US, the last 7-8 years or so.
It might be available a bit earlier here, but only at boutique oil stores, not Walmart, AutoZone or AAP.
Before that, people were driving German cars with Mobil 1 Euro 0W-40.

Starting around 20010 ESP and other ACEA C3 oils were mandatory in the US for DPF/SCR "euro" diesels. It was at this time the US moved to ULSD. VW diesel gate temporarily killed off the C3 for most European makes but it was short lived as the US moved to ULSG around 2020.

ESP used to fly off the shelves back in 2010. VW TDI owners..meh.

 

[Arc]

Do the catalytic converters need cleaning up from excessive oil burning? Is that the problem here?

Will your method reverse phosphorus poisoning of the platinum metals?

I can't answer that. All I can say is they look clean and the O2 data says they are working after many many miles where typically they would have bit the dust. I've never done any testing data before and after. It's a cheap alternative and if you aren't happy with the results at least you are only out a few dollars. This was just a method I saw in an old BMW manual for the car I had back probably 40 some years ago and it was for removing carbon and it does that very well for piston tops, rings and valve faces. I don't know if I mentioned it earlier but I saw the carbon results firsthand when I rebuilt the 4.7 on my 2000 model Jeep before I gave it away. With around 400k maybe a little less the engine was very clean on the inside and very little carbon buildup in the ring groove. The rebuild was due to a blown head gasket and high miles.