I have the ester based Silkolene Pro S 10/50 in the sele, thinking it would help reduce the oil consumption. If anything it has gone up, almost as high as when I was using Magnatec. So far Selenia 20k definately works best. Similar experinece with the Magnatec in the 145, just drinks it. Does not seem to make much difference in the 166's V6, seems very unfussy and gets what it given.
So, I now have a choice, do I stick with the Silkolene in the sele, or drain it off and put it in the 145 instead, then do I put 20K back in the sele or try 10/60 as is now recommended?
Or just slap some Silkelene 10/40 in, like the 166 has and keep topping it up often?