Motul 5w40 ~3750 miles + 1 track day, Kia Stinger

[funWithCar]

Final of 3 reports for this oil fill. Kia Stinger, 1 track day, then ~3750 miles city/highway driving with approx 6-6.5 months total oil duty cycle. Changed the oil, although reports indicate 6k miles would be fine, so I may extend a bit next time.

Sampled at 1500 miles, that report is here:
https://bobistheoilguy.com/forums/threads/motul-5w40-1500-miles-1-track-day-kia-stinger.358807/

Initial sample:
https://bobistheoilguy.com/forums/threads/motul-5w40-sport.358806/

 

[Deleted member 89374]

I'd contact Blackstone and ask them to run the sample again. The additive numbers look lower than where they're supposed to be.

Blackstone ... bless their hearts.

 

[funWithCar]

I'd contact Blackstone and ask them to run the sample again. The additive numbers look lower than where they're supposed to be.

Blackstone ... bless their hearts.

Which numbers?

 

[aquariuscsm]

Those are really nice cars! I wouldn't do an extended oil change interval on it. What does Kia recommend for severe service?

 

[funWithCar]

Those are really nice cars! I wouldn't do an extended oil change interval on it. What does Kia recommend for severe service?

I think severe service is 3000 miles / 6 months. I did the change because I was just over 6 months.

 

[OVERKILL]

Which numbers?

Zinc and Phos are all over the map.
Virgin: 800/707
1500: 904/775
3750: 762/671

There should not be that much variance. Calcium and magnesium look a bit "off" too.

 

[funWithCar]

Zinc and Phos are all over the map.
Virgin: 800/707
1500: 904/775
3750: 762/671

There should not be that much variance. Calcium and magnesium look a bit "off" too.

Thanks. I sent them an email asking about it. I sent both the virgin and 1500 sample in the same package. Is it possible they swapped the values?

 

[OVERKILL]

Thanks. I sent them an email asking about it. I sent both the virgin and 1500 sample in the same package. Is it possible they swapped the values?

Doesn't seem likely, given the flashpoint went down.