Originally Posted by kccats
No You can premix an EFI, but I would just fix the problem! I would also fix the T Cat!
Service manual says NO
to mixing on an EFI.
Two reasons, first, the oil will clog the screens in the smart valves (ultra fine mesh) and second, it will also clog the injectors.
If you need to have extra oil for a break in period, it says to wire the oil pump lever open for the first tank of gas.