Does anyone know what the TBN is for virgin Motorcraft semi-synthetic 5W30? This will save me buying an extra quart and sending in a sample.
TBN for virgin MC semi-syn 5W-30?
- Thread starter vincent714028
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7.8 TBN according to the spec sheet for both conoco semi-synthetic and tropartic semi-synthetic.
hominid7 wrote that it was 7.8 according to the Trop Artic spec sheet so it should be near there.
and i just read that SuperTech dino has a TBN of 7.8.
any reason that MC is still a better oil?
any reason that MC is still a better oil?
Havoline also has a TBN of 7.8
I would assume the additive pack can make up what the TBN takes away in some oils.
I would assume the additive pack can make up what the TBN takes away in some oils.
They are all shooting at the same target and hitting it.
ILSAC I am really convinced it's a good thing.
While i am not sure, should I assume that the TBN of oil X made up of group I and II would be higher than the TBN of oil Y that is a II III blend to achieve the same results?
I am not sure either. It is my assumption that the additive packages sold by Lubrizol and Oronite to blenders to attain a ILSAC licensed oil for example are designed to work with Grp II-III base oils of a certain Viscosity range.
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I believe that Schaeffer's Supreme Blend 5w30 has a TBN of 7-7.5. And that oil is a blend of Group II+ and PAO. Yet it performs real well for the long haul. In my own personal experience their TBN seems to drop quickly but then stabilizes and remains consistent for the remainder of the OCI. In my case it was 10,000 miles in a 2002 Explorer with the 4.0L V-6.
Whimsey
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