Developing Oil Life Calculator, see inside.

[Jim Allen]

Originally Posted By: randomhero439


Originally Posted By: Jim Allen
2005 Ford F150, 5.4L V8, Motorcraft Super Duty 10W30 HDEO, API CJ4/SM

7 qt sump + 2 qts in bypass system

Does filtration enter into this? If so, it's running a 3 um bypass system, which also adds oil capacity.


7802 miles or 9 months
Filtration does not play into my equation.



Assuming you want to test this, would you be interested to know that I am already 4K miles past that and that I had oil analysis done at 10K miles that gave a green light to go farther? Not sure what the calculator takes into account but here is are the results.



Code:
Code:

Element Virgin 10K UOA (zero values not listed)



Iron- 1 19

Aluminum- 2 2

Copper- 0 3

Silicon- 0 8

Sodium- 2 1

Potassium- 4 1

Moly- 0 10

Boron- 2 2

Magnesium- 8 73

Calcium- 2642 1829

Phosphorus- 1174 861

Zinc- 1307 985

Viscosity- 11.7 10.7

TAN- NA 2.68

TBN- 7.7 3.72

Oxidation- 9 14

Nitration- 4 11

 

[randomhero439]

^^Well im impressed! The corrected TBN that your provided makes it 8255 miles or 9 months. Factoring in the bypass setup you have, i get 11017 or 13 months, but im assuming you could go longer than that.

 

[donnyj08]

2012 Ram 1500 Crew cab hemi 5.7l Current fill is Mobil super synthetic 5w20.

2008 nissan Armada 5.6l 5w30 M1

 

[WiskyBadger]

ok Lets try this again 06 Chevy Silverado 5.3 v8 VWB 5w30
Chevy Monte Carlo SS 3.8 v6 VWB 10w30

 

[zerosoma]

Originally Posted By: randomhero439
Originally Posted By: zerosoma
Do me! In sig!

Valvoline is SM variety, Mobil 1 is SN


Hyundai: 7233 or 9 months
Prius: 11314 or 14 months


That is cool! What about regular Valvoline Next Gen in the Hyundai and Next Gen Max Life in the Prius?

 

[yesthatsteve]

Originally Posted By: randomhero439
Originally Posted By: yesthatsteve
This is an interesting exercise. I'll bite:

2005 Scion xB
1.5 L 1NZ-FE
G-Oil 5W30 SM


10236 or 13 months



Thanks for the reply!

Wow! With G-Oil's UOA results in other engines, I was planning to change at 7500 miles/4 months.

 

[randomhero439]

Originally Posted By: donnyj08
2012 Ram 1500 Crew cab hemi 5.7l Current fill is Mobil super synthetic 5w20.

2008 nissan Armada 5.6l 5w30 M1


Dodge: 7892 miles or 10 months
Nissan: 8677 miles or 11 months

 

[randomhero439]

Originally Posted By: ChevyBadger
ok Lets try this again 06 Chevy Silverado 5.3 v8 VWB 5w30
Chevy Monte Carlo SS 3.8 v6 VWB 10w30


Silverado: 4960 miles or 6 months
Monte Carlo: 4295 miles or 5 months

VWB has a [censored] poor TBN

Originally Posted By: zerosoma
Originally Posted By: randomhero439
Originally Posted By: zerosoma
Do me! In sig!

Valvoline is SM variety, Mobil 1 is SN


Hyundai: 7233 or 9 months
Prius: 11314 or 14 months


That is cool! What about regular Valvoline Next Gen in the Hyundai and Next Gen Max Life in the Prius?


Hyundai: 4295 miles or 5 months
Prius: 5776 miles or 6 months <--- Assuming TBN of 7.0

 

[randomhero439]

Originally Posted By: yesthatsteve
Originally Posted By: randomhero439
Originally Posted By: yesthatsteve
This is an interesting exercise. I'll bite:

2005 Scion xB
1.5 L 1NZ-FE
G-Oil 5W30 SM


10236 or 13 months



Thanks for the reply!

Wow! With G-Oil's UOA results in other engines, I was planning to change at 7500 miles/4 months.


G-Oil has a pretty high TBN, its synthetic, and your engine is easy on oil.

 

[MBS500]

Hmm, Can I try? MB in my sig with current fill? 8.5 qt sump.
I want to try Maxlife 10w-40 classic 4q and 5q of Nextgen Maxlife next, they should be same TBN, Then Castrol GTX HM 10w-40
Bimmer want to try Mag1 5w-40 Euro, then All fleet, and Lubro Moly Top Tec 4100 5w-40, Them Motul Specific LL-04 5w-40. Same 8.5 q sump, but may fill it with 9q same as MB.

 

[RamFan]

TBN x displacement x sump x ???

Do the charger please. ML is SN.

 

[randomhero439]

Originally Posted By: MBS500
Hmm, Can I try? MB in my sig with current fill? 8.5 qt sump.
I want to try Maxlife 10w-40 classic 4q and 5q of Nextgen Maxlife next, they should be same TBN, Then Castrol GTX HM 10w-40
Bimmer want to try Mag1 5w-40 Euro, then All fleet, and Lubro Moly Top Tec 4100 5w-40, Them Motul Specific LL-04 5w-40. Same 8.5 q sump, but may fill it with 9q same as MB.


Mercedes: 9887 miles or 12 months 7503 miles or 9 months 6519 miles or 7 months
BMW: 11285 or 14 months
Find me some TBN's for the other oils, and ill run those too.

 

[randomhero439]

Originally Posted By: RamFan
TBN x displacement x sump x ???

Do the charger please. ML is SN.


5477 miles or 6 months.

Good try on the formula as well! You got 2 parts correct

 

[tinmanSC]

Originally Posted By: randomhero439
Originally Posted By: RamFan
TBN x displacement x sump x ???

Do the charger please. ML is SN.


5477 miles or 6 months.

Good try on the formula as well! You got 2 parts correct

It was the sump x ??? wasn't it?

 

[randomhero439]

^^ Sump x TBN gives you the relative amount of additive in the engine. Those are just two numerical variables I use.

 

[Quattro Pete]

Back in the day, TooSlick came up with a pretty good formula. It took displacement, HP, TBN, sump, and MPG into account, among other things.

 

[randomhero439]

Originally Posted By: Quattro Pete
Back in the day, TooSlick came up with a pretty good formula. It took displacement, HP, TBN, sump, and MPG into account, among other things.


Interesting, it would seem like MPG would be pretty relative to the car. Which would mean he would have to factor in the EPA city/highway for said car. I wonder if he factored in horsepower per liter, cause that would be relative as well. A 505hp 7.0L V8 would be significantly less abusive than a 300hp turbo 1.8L Integra.

Interesting... Maybe instead of my "force-induction" factor, i could use a HP/L factor...

 

[Artem]

I wanna play...

2007 Honda Civic EX 1.8L using Amsoil AZO 0w30 signature series oil.

Lets pretend I do 80% highway driving.

 

[Quattro Pete]

Originally Posted By: randomhero439
Originally Posted By: Quattro Pete
Back in the day, TooSlick came up with a pretty good formula. It took displacement, HP, TBN, sump, and MPG into account, among other things.


Interesting, it would seem like MPG would be pretty relative to the car.

Yes. The average MPG you're expecting to achieve over the course of the OCI helps account for things like city/hwy driving, or driving short distances in cold climates - all of these affect MPG, and the more fuel you burn over the same distance, the more severe the service. The OLM in my 530i is based on amount of fuel burned alone.

Here's more info on TooSlick's formula:
https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2289889#Post2289889

 

[randomhero439]

Originally Posted By: Artem
I wanna play...

2007 Honda Civic EX 1.8L using Amsoil AZO 0w30 signature series oil.


11371 or 14 months