Originally Posted by jbutch
Originally Posted by paoester
Originally Posted by geeman789
That other poster went back because the oil is not SN+ , and he was worried about LSPI. NOT because the oil was too thick ...
Euro L has a low 1600 ppm calcium, as was repeatedly pointed out in the Jeep thread. Odds are very low any LSPI would surface. The Jeep 2.0L Turbo (alfa romeo) and this Subaru WRX 2.0 turbo are very unlikely to have a problem. If there is still concern, you can add a half bottle of Rislone 3X Concentrated Oil Supplement with Zinc Treatment or LM MOS2, as both are LSPI quenchers.
Being an STI, it still has the EJ25 which is port injected so it is not a TGDI. LSPI should not be an issue.
Euro L looks like a stout oil, I wouldnt worry using this oil.
Forgive me, but what part of the LSPI (ringland killer) equation is directly tied to direct injection over port injection when the EJ25 is known to eat ringlands with observable LSPI in low speed high load conditions (can monitor it and it can't be tuned out)? Lower compression engines are going to lose their margin of safety in those low speed high load conditions...in my youth (2005 ish) I tried tuning that knock out and no amount of fuel or timing compensation would.....just had to adjust how to drive around those scenarios. I don't feel particularly concerned myself, knowing where that knock is, but I sure do feel a lot more comfortable knowing my oil shouldn't be contributing to it.