I just did an oil change. I was planning on putting some fuel detergent in the tank and run in through before the oil change but forgot. Can I still put it in now without having negative effects on the oil?
I am using the product called "Guaranteed to Pass" which is just a polyetheramine based detergent. Polyetheramine is generally considered the only real effect fuel system cleaner, and is the main cleaning additive added to basically all fuels at the pump.
My car is GDI. So the detergent would only come in contact with anything in the cylinder and then the exhaust, so I don't see how it could affect the oil, but would love to see if an expert agrees.