Looking at some oils for the wife's new VW Sportwagen 1.8T 6M. We usually do 6 month changes, about 4500 miles, so reduced SAPS additives are plenty strong.
The 2019 manual now calls for either 502 or 504 anyway. So the dilemma is to use lower SAPS to avert intake valve deposits, something we never had a problem with. Euro L also has low Ca at 1700, so it should help avoid LSPI too.
The Edge 0w-40 I looked at initially seemed to have lower Ca and higher Mg, plus Ti that helps quench LSPI. So with MB 229 it looked like a great choice.
However the most recent UOAs show higher Ca of 2200, if I am not mistaken. Did Castrol change to higher Ca? Are they unconcerned about LSPI, and should I be?
VW/Audi doesn't have a record of LSPI problems anyway. Should I be looking at these oils or something different? I have no probs running Euro L in liew of VW 504, the MB and BMW specs alone are fine. I already have Pennzoil Platinum SRT here l could run it with high Ca but also high moly, another element that quenches LSPI.
So why am I looking at Edge if the Ca is back up? Doesn't Euro L seem ideal?
The 2019 manual now calls for either 502 or 504 anyway. So the dilemma is to use lower SAPS to avert intake valve deposits, something we never had a problem with. Euro L also has low Ca at 1700, so it should help avoid LSPI too.
The Edge 0w-40 I looked at initially seemed to have lower Ca and higher Mg, plus Ti that helps quench LSPI. So with MB 229 it looked like a great choice.
However the most recent UOAs show higher Ca of 2200, if I am not mistaken. Did Castrol change to higher Ca? Are they unconcerned about LSPI, and should I be?
VW/Audi doesn't have a record of LSPI problems anyway. Should I be looking at these oils or something different? I have no probs running Euro L in liew of VW 504, the MB and BMW specs alone are fine. I already have Pennzoil Platinum SRT here l could run it with high Ca but also high moly, another element that quenches LSPI.
So why am I looking at Edge if the Ca is back up? Doesn't Euro L seem ideal?