Originally Posted by oil_film_movies
Originally Posted by Eddie
I wouldn't purchase a "Hobby" vehicle where I need to be concerned about extra oil changes, special valve cleaning regiments and the like. I would wait until HONDA gets their act together. Meanwhile, I'll enjoy my CX5 DI engine that has shown no fuel dilution over a few tenths over three UOAs. Ed
Its not that bad. Really all these fuel diluting 1.5T owners need to do is keep the oil near the half-way point, between Add & Full, then in about 4,000 miles into the oil change interval, put in a cup of either STP Oil Treatment (200 cSt KV100) or Schaeffer #132 Moly EP Engine Oil Treatment (238 cSt KV100) thick goop, both very mixable and not harmful, meant to be compatible. Put in another cup at the 8,000 mile point if going the full 10k miles on the oil change. Keeps the visc up where it should be.
Also, this lets you document the use of Honda-spec 0w20 in case they want to get nutty about engine failure warranty claims, if it happens.
If Highkm the OP (with 5.6 cSt KV100) would have done this, he would have ended up with about ~7.5 cSt at the end, enough to keep the Stribeck curve contented.
Even if viscosity were the only measure of lubricant effectiveness (it isn't: my grandmother's pea soup had a cSt of probably 20-something), what are the odds of the average Honda owner doing as you suggest?