The other thing, for sure at the $27-29 range at the shelves at WalMart, is while R&P may actually clean (if it’s formulated properly; I forget which test
@Tom NJ said was needed to detect esters and ANs- FTIR?) there’s no way in Hades you’re getting the TBN retention, oxidation, and nitration control results to go 30k+ miles like
@wwillson and
@Direct_Rejection are.
I saw a “funny” but true comment in wwillson’s thread, where HPL was asked how long their oil will remain serviceable, and the answer was “longer than you’ll be comfortable”. How true. If you buy into the 3.5 EcoBoost hysteria (I don’t), if you don’t change the oil every 3-5k miles, you’re going to be broke down roadside with bad phasers, chain guides, and almost everything else. I went 15k on the PCMO which is the same as the fleet protocol; I will sample the No VII at 15k and go from there. I doubt I will be as bold as Wayne; even stopping at 20k makes it a once-per-year OCI which is plenty of ROI for me.
The biggest thing I see that nobody’s really mentioned, that could be a HUGE nail in the coffin for the Valvoline, is: how much, and what type of VII is used? If it’s not shear stable, and put in a TGDI with fuel dilution, this may just be another $30, 5k OCI oil. In that case, the $70, 15-20k oil wins every time on cost and downtime. Time will tell.