akasonny
Well-Known Member
- First Name
- Steven
- Joined
- Mar 25, 2020
- Threads
- 5
- Messages
- 220
- Reaction score
- 82
- Location
- Sahuarita, AZ
- Car(s)
- 2020 Supra Premium (Downshift Blue)
I've had to learn more about engine oil than I ever wanted. The upcoming C6 specs seem to be the answer.lower SAPS oil tends to have lower TBN values. Higher sulphur gasoline depletes TBN faster. So LL-04 spec wasn’t originally approved for The US.
But now that the sulphur specs are closer to Euro, you should still be able to run lower SAPS engine oils as long as your oil change intervals are relatively shorter (ensuring ample TBN levels).
I don’t really get why people on oil forums still encourage LL-01 use - with the newer DI engines, I thought lower SAPS (eg: LL-04) would be the better option.
I reside in the AZ desert with temps regularly reaching 106F. As such I've wanted to swing over to a heavier oil but finding anything with the C5 spec is difficult. Therefore, I've stuck to Toyota's C5 OEM oil. I'm hoping this will go by the wayside so that I can lean towards something heavier.
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