Valvoline Restore & Protect 5W-30, 5000 miles, 2022 KIA Soul 40,000 miles
- Thread starter PWMDMD
- Start date
How many times have you used R&P on this engine? Curious how accurate these additive levels are.
This was the end of the second OC and I put VRP back in.
Looks good. No oxidation at all. Still a 30 grade. VRP does seem to show good wear control. (they claim 79% better than required by GF-7 via IVB Wear Test).
Very low wear, looks great. Any more fuel dilution and it probably would’ve dropped out of SAE30 but it seems not to matter. I should have a 5K UOA with this in a month or so too.
Obligatory BITOG .....it's totaled 
.
Looks good from all I know. What are the usage conditions? Highway trips? Lots of short trips? How many months to get the 5K?
I have first round of 5W-30 VRP in daughter-in-laws '21 Tucson and sons '10 Forte. 1st run of VRP 0W-20 in my Accord currently. I won't test any of those until after 2nd round.
'19 Pilot is on 2nd run of VRP 5W-30 and I'll probably test in a couple weeks. It's getting a road trip in 2 weeks and will be at about 5500 miles at the end.
.Looks good from all I know. What are the usage conditions? Highway trips? Lots of short trips? How many months to get the 5K?
I have first round of 5W-30 VRP in daughter-in-laws '21 Tucson and sons '10 Forte. 1st run of VRP 0W-20 in my Accord currently. I won't test any of those until after 2nd round.
'19 Pilot is on 2nd run of VRP 5W-30 and I'll probably test in a couple weeks. It's getting a road trip in 2 weeks and will be at about 5500 miles at the end.
You said the Comments are Welcomed. I am going to say that with a TBN of 2.46 that this oil is more than likely a 5000-mile kind of oil.
The oil was serviceable at the time of sampling, but as Brian said, it's not likely to go a ton more miles than 5k. You'd have to get into sampling every 1k until TBN was either <2.0 OR TBN > TAN. Which may only be one additional sample. But it's very hard to make a value case to extend OCIs 1k miles for $40.
5k OCI is where I'd leave this as long as you're using R&P.
5k OCI is where I'd leave this as long as you're using R&P.
Last edited:
The Tundra, Soul, RX 350, and Forester are and always have been on 5k mile OCIs.
what was the duration(time) of the OCI?
looks really good overall . Oil wasnt quite done but getting there.
What is the typical driving cycle/use of the vehicle?
About 6 months and it’s driven mostly in town but with some highway miles. It can be short-tripped pretty often.
If you want to keep a car for a long time and have less issues, a 5000-mile OCI is the best way to go.
I don't think VRP is a long drain oil but TBN on it's own is not a good indicator of drain interval. Do a search on TBN. There is a lot of information on its value or lack of. A better value would be change in oxidation rate and wear metals + TAN. TBN can stay at 2+ for quite some time. This oil's oxidation virgin is around 7. It's now 11. So it's barely moved in 5k miles. I'm not suggesting to go further but technically speaking the TBN is not an issue here at all.
Most of all the mid/low SAPS oils have a starting TBN of 7-8 now. ESP, Mobil 1 EP etc. They will hover around 2 for a long time and remain stable.
"TBN in an oil is primarily derived from the over based metallic detergents in an engine oil. One of functions of these detergents is to neutralise the acids formed by the oxidation of base oil.
And this is where TBN gets to be a poor predictor of oil life. 10 TBN's worth of detergent in a Group I oil (old fashioned mineral base oil) will be depleted much more quickly than 10 TBN's worth of detergent in a Group III based oil (severely hydrocracked base oil). Put simply, if the base oil resists oxidation, it doesn't form carboxylic acids and so makes no call on the TBN reserve.
The other thing is that TBN depletion isn't usually linear. On industry standard tests like the 100 hour/150°C Sequence IIIG, TBN usually depletes exponentially and in severe cases you might find that half way through the test, the entire TBN reserve has be used up, such that oxidation resistance is carried by supplementary Antioxidants in the oil."
"One other thing...
Most folks would consider an engine oil to be shot when the TBN reaches 2 - 3. This isn't actually the case. An oil can function quite happily with a TBN of zero.
The thing you have to remember is that oil formulators don't tend to focus directly on stuff like TBN depletion, acid formation or oil oxidation. What they're really concerned with is the onset of exponential viscosity increase. For many of the lengthy, industry standard engine based oxidation tests, it's both impractical and uneconomic to just use over based detergent to control oxidation. Given how fast it can deplete, you might need an oil with a starting TBN of around 20 to keep the TBN above 2 at the end of the test!
For this reason, modern oils contain a cocktail of various Antioxidant chemistries, each of which plays a role in keeping the oil from 'breaking' long after the TBN reserve has been exhausted.
Just to be clear, there's nothing wrong per se with changing out your oil when the TBN hits 2 - 3 but if you do a UOA, and find the oil's TBN is zero, it's not something to freak out about."
Most of all the mid/low SAPS oils have a starting TBN of 7-8 now. ESP, Mobil 1 EP etc. They will hover around 2 for a long time and remain stable.
"TBN in an oil is primarily derived from the over based metallic detergents in an engine oil. One of functions of these detergents is to neutralise the acids formed by the oxidation of base oil.
And this is where TBN gets to be a poor predictor of oil life. 10 TBN's worth of detergent in a Group I oil (old fashioned mineral base oil) will be depleted much more quickly than 10 TBN's worth of detergent in a Group III based oil (severely hydrocracked base oil). Put simply, if the base oil resists oxidation, it doesn't form carboxylic acids and so makes no call on the TBN reserve.
The other thing is that TBN depletion isn't usually linear. On industry standard tests like the 100 hour/150°C Sequence IIIG, TBN usually depletes exponentially and in severe cases you might find that half way through the test, the entire TBN reserve has be used up, such that oxidation resistance is carried by supplementary Antioxidants in the oil."
"One other thing...
Most folks would consider an engine oil to be shot when the TBN reaches 2 - 3. This isn't actually the case. An oil can function quite happily with a TBN of zero.
The thing you have to remember is that oil formulators don't tend to focus directly on stuff like TBN depletion, acid formation or oil oxidation. What they're really concerned with is the onset of exponential viscosity increase. For many of the lengthy, industry standard engine based oxidation tests, it's both impractical and uneconomic to just use over based detergent to control oxidation. Given how fast it can deplete, you might need an oil with a starting TBN of around 20 to keep the TBN above 2 at the end of the test!
For this reason, modern oils contain a cocktail of various Antioxidant chemistries, each of which plays a role in keeping the oil from 'breaking' long after the TBN reserve has been exhausted.
Just to be clear, there's nothing wrong per se with changing out your oil when the TBN hits 2 - 3 but if you do a UOA, and find the oil's TBN is zero, it's not something to freak out about."
Last edited:
TBN doesn't matter.
However for his specific vehicle/engine 5,000 miles is the interval for this oil because it is almost out of grade.
2.0 NA and almost exclusively Mobil FS 0W40
