Comparing TDI3 test to Sequence IIIH

[paulri]

Here is the thread with the first quoted paragraph: https://bobistheoilguy.com/forums/t...-sp-rc-ilsac-gf-6-and-acea-2021-specs.362023/

The second paragraph from Buster's post is above (just scroll up), post #9 on this page/in this thread, from Arthur Argentum.

 

[buster]

Here is the thread with the first quoted paragraph: https://bobistheoilguy.com/forums/t...-sp-rc-ilsac-gf-6-and-acea-2021-specs.362023/

The second paragraph from Buster's post is above (just scroll up), post #9 on this page/in this thread, from Arthur Argentum.

Arthur was from the ROC and I believe he left BITOG. He respected Mobil a lot from what I could tell.

 

[buster]

Does anyone know how the TD3 piston cleanliness test (the CEC L-117, used to qualify an oil for ACEA as A3/B3, A3/B4, A5/B5) compares to the Sequence IIIH piston cleanliness test? I realize that both tests involve heating the oil up, and then comparing deposits in the pistons. But as far as passing the tests go—is passing the European test a more rigorous standard than passing the Sequence IIIG?

FWIW, here is a short video on the TD3:

So that test says the oil is subjected to 145C (293F) temps for 45 hours? The IIIH is 305F for 90 hours (151°C lubricant temperature for 90 hours, interrupted at 20-hour intervals for lubricant level checks). Amsoil doubles it to 180 hours to demonstrate oxidation resistance and piston deposit prevention. Mobil 1 EP is 20x better than the standard.

It appears the IIIH is more stringent than the CEC L-117. But the CEL is a test for Turbocharged Diesel Injection (TDI) engines.

https://www.swri.org/sites/default/files/sequence-iiih-test.pdf

I'd love to see the ESP line subjected to the IIIH to compare.

 

[Jetronic]

So that test says the oil is subjected to 145C (293F) temps for 45 hours? The IIIH is 305F for 90 hours (151°C lubricant temperature for 90 hours, interrupted at 20-hour intervals for lubricant level checks). Amsoil doubles it to 180 hours to demonstrate oxidation resistance and piston deposit prevention. Mobil 1 EP is 20x better than the standard.

It appears the IIIH is more stringent than the CEC L-117. But the CEL is a test for Turbocharged Diesel Injection (TDI) engines.

https://www.swri.org/sites/default/files/sequence-iiih-test.pdf

I'd love to see the ESP line subjected to the IIIH to compare.

No it isn't. the IIIH test is a 3.6l 6 cylinder port injection ran at half power. The piston crowns will be far less hot than a boosted 1.6 4 cylinder GDI running full power like the EP6DTC test. but see what Lubrizol says....

I don't understand why you're looking at a diesel test when there's a gas test in CEC-L111-16



173 hours.

 

[buster]

Yeah you may be right that is pretty stringent. More applicable to GDI engines too. Some tests are hard to compare.