Please do not fall pray to 10~15,000 Kms drain interval gimmickry.
Irrespective of the engine oil brand you choose and use, just always follow the drain interval as mentioned in the owners / users manual.
If in the manual, it has been written to change engine oil after every 5,000 Kms (or 06 months, whichever comes 1st), then in the best interest of your car's engine health, just change it after 5,000 Kms, irrespective the oil recommends to change after 10~15,000 Kms, i.e. long drain intervals.
2ndly, on such oils too, if one looks at the back of their packagings, or go through their PDS (Product Data Sheets), they clearly mention to follow the drain intervals as per OEM guidelines, i.e.:
"Ja'agda'ay Raina... Saaday tey Na Raina...!" 
As they'll not take any responsibility if something goes wrong, and definitely, many things can go wrong, if you use such oils for 10~15,000 Kms, whereas in the manual, OEM recommends to change it after every 5,000 Kms.
I think, I should stop now. Have discussed this issue multiple times, in many different threads. I hope, you have got my point.