FYI for the Castrol folks. Below is the email I sent to them this morning and there response back to me.
In your Castrol SynBlend (gray bottle).
What is the percentage of Reg oil to Synthetic Oil?
Just curious.
Thank you.
Problem Resolution:
Thu 31/10/2013/11:25 AM EDT/ LO - Castrol Representative (time)-
Thank you for contacting Castrol North America.
Castrol GTX Synblend A premium synthetic blend motor oil specially engineered with TriShield(tm) Technology to provide maximum wear protection.
The specific amount is considered proprietary, however we can advise you that the percentage of synthetic oil in Castrol GTX Synblend is between 10-30%.
Castrol Consumer Relations[/color]
In your Castrol SynBlend (gray bottle).
What is the percentage of Reg oil to Synthetic Oil?
Just curious.
Thank you.
Problem Resolution:
Thu 31/10/2013/11:25 AM EDT/ LO - Castrol Representative (time)-
Thank you for contacting Castrol North America.
Castrol GTX Synblend A premium synthetic blend motor oil specially engineered with TriShield(tm) Technology to provide maximum wear protection.
The specific amount is considered proprietary, however we can advise you that the percentage of synthetic oil in Castrol GTX Synblend is between 10-30%.
Castrol Consumer Relations[/color]