OCI diff between Rotella T6 and Delo LE in gasser

[lipadj46]

I usually use Rotella T 5w40 or Mobil 1 TDT in my Discovery as it has an all aluminum flat tappet engine. I usually stick to 5000-6000 mile OCI's just because that is the general consensus in the disco community after some UOAs and rebuild evidence. I had a gift certificate from Tractor Supply and bought 5 gallons of 15w40 Delo LE Dino oil and was wondering if I could do similar OCIs with it or if I should cut the OCI down to say 4000 miles. I know it is still a very robust oil compared to regular PCMOs.

 

[JT1]

UOA at 4k to find out how much life is left, I'm betting there will still be high enough tbn for 4k more.

 

[lipadj46]

Yes I will do a UOA. It is my suspicion that these trucks can go much farther on HDEO than the general land rover community believes and I know Delo is a very robust HDEO.