T6 fine print in the back has a description that it is virtually compatible with low emission heavy duty vehicles with exhaust after-treatment devices. Is this device they speak of the AD-Blue device? If it is, then would this formulation be MAYBE similar to the M1 ESP?
Exhaust after-treatment device
- Thread starter whizbyu
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No, not similar to M1 ESP. CJ-4 is equivalent to full-SAPS PCMO.
They speak of devices present on heavy duty trucks. I am not aware of AD-blue at that level.
They speak of devices present on heavy duty trucks. I am not aware of AD-blue at that level.
Ad-blue is a SCR/urea system, most new medium & heavy duty diesels use a similar aftertreatment system. CJ-4 is a higher SAPS formulation than Mercedes recommends for their DPF systems.
After-treatment devices are anything in the exhaust that lowers emissions. In general this means SCR (which uses AdBlue) and DPF, but there are also some hybrids like DOC (diesel oxidation catalyst) or oxi-cat. EGR is sometimes thrown into the mix as an outside-the-engine emissions control system, although it doesn't usually need anything special from the oil other than deposit protection.
Of these, the DPF is the most affected by oil type and requires the low SAPS formulations to prolong filter life. SCRs and DOCs can be poisoned by the wrong additives but this is a lesser problem.
Of these, the DPF is the most affected by oil type and requires the low SAPS formulations to prolong filter life. SCRs and DOCs can be poisoned by the wrong additives but this is a lesser problem.
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