With 3.2 remaining TBN I would not have the confidence to run another 5000 personally. 2500 or so would be the limit for me. I assume you will run another UOA at the finish line. Should be interesting. Thanks for the data point.
2012 Mustang 3.7L V6 - High Performance Lubricants HDEO 5w-20 - 15,437 miles
- Thread starter RDY4WAR
- Start date
TBN 3.2 @15k miles.
TBN is not linear.
How much do you expect it to drop between 15 and 20k miles ?
My answer is not much.
My experiences lead me to expect slight oxidative thickening to occur between now and the next UOA.
With an oil of this quality, and this robustness,
and with appropriate viscosity, I expect there to be nothing to see here.
Very nice results! Educating myself on this oil. How purchased and what's the cost?
MMO is 70% pale oil with small amounts of alcohol, naphtha, and chlorine. It would be a downgrade for this oil (and any oil).
The next oil change will perhaps be more telling. There is some dilution with the previous oil in the vehicle. There is also a chance that potential deposits in this engine may be dissolved into this oil change. We have esters in this formula like most of ours and therefore he oil will clean. The alkalinity will take a hit if this is the case. It is certainly a possibility as this TBN is lower than I would have expected.
I have read speculation that thinning from fuel dilution can mask oxidative thickening,
with extended OCIs.
Any comments you might have would be enlightening.
The 2 would definitely be opposites in terms of Viscosity. The dilution I was referring to was dilution by volume from a residual amount of the old oil. The sample could be looked at with GC to look at fuel concentration. Based on experience with our oils it would be much more likely that we are seeing results that will be bested by the next sample. When you consider a typical oil will run roughly 30 minutes on PDSC (200C at 500# oxygen) compared to ours at greater than 120 minutes is is not very likely at all that this oil is oxidized. The trend of information over time will paint a much more accurate representation than a single datapoint.
For a comparison, here's the VOA of this oil from the same gallon jug. The UOA shows 30-35% dilution. It appears this engine holds a good bit of oil over from the previous change. I'll change it at 20k miles, take another sample then, and run this oil for another 15-20k. If the numbers are the same from VOA to UOA, then that's the issue. Regardless, the oil is holding very well at 15k.
Holy carp that is the most action packed VOA I've ever seen. I'm reminded of a a comment I saw on here a long time ago about old school Valvoline VR-1 racing oil - "man that stuff is straight punk rock!"
6 quart sump capacity helps with extended drains.
6qt sump in 3.7 is IMO nothing to be proud of.
I definitely think this oil could/can compete with the SS series of Amsoil. Has loads of molybdenum and reminds me of Redline HP but with a bit more duration on the tbn.
I guess I was comparing it to my 3.5 quart capacity. What does pride have to do with sump capacity? Wow!
I posted the 20,000 mile report a while back.
2012 Mustang V6 - HPL HDEO 5W-20 - 20,467 Miles
UOA on my wife's 2012 Mustang with the 3.7L V6. This is High Performance Lubricants HDEO 5W-20, the CI-4 version. The filter was a Fram Ultraguard XG10575 which I will do a C&P on soon. Total miles on the car is 157,065 miles and the oil has 20,467 miles. Some slight oxidative thickening with...
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My only concern would be that if your engine has VVT with cam phasers. They like fresh clean oil.
Ok, wrong choice of words.
6qt is nothing. VW 1.8 4cyl engine has more than 5qt sump.
I'm sure it being ester based it will stay clean much longer and clean up whatever was there prior. So long as the oil filter is top notch and air filtration is performing as it should then it might surprise us.
Looked at different engine oil capacities. Ecoboost 2.7, 3.5. Toyota, GM V6's and several V8's all 6 quarts or less and the list goes on. Maybe Euro makers are big sumps but certainly not most domestic or Japanese.
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