Quote:
Originally Posted by Dackelone
LL4 can be also used where LL1 is spec'd. But not the other way around! 
LL1 = USA (high sulfur fuels)
LL4 = Europe (low sulfur fuels) |
I think the biggest difference with the LL-04 oil is that it is a low SAPS/low ash oil, so it has a lower starting TBN. Therefore, it will not last as long as an LL-01 oil (when used with higher sulfur/ethanol fuels) and the OCI should be much shorter.
It is also geared towards Diesel engines with particulate filters, so as not to clog them up (like a high SAPS/high ash oil would).