I agree, Lake is a true oil geek. I would like to be with him when they ask " do you want them normal synthetic or the Premium one"
Interesting how not one additive is the magic ingredient but more of the " formula"
The days of leaving the windows down and playing the car stereo are gone I think.
They why they highly recommend using a battery charger when you push a tune to the ecoboost. If the battery dies in the middle your screwed
I bought a 2013 Accord new and it did something similar which surprised me.
But like others have said get the batter tested to be sure, most autoparts store will do it for free,
You can also buy a battery tester off amazon for around $25, bought one and my wife's SUV said " replace battery"...
Also Lake was a oil specialist at Joe Gibbs racing for years so isn't a random guy making youtube Video's. He is showing you the results using oil samples.
If you don't want to take 30 seconds and prefill a filter don't do it but I have done it for years.
Following and Curious. Seems to me if I was a Ford tech to determine if it's a Mechanical or software issue I would want to flash it back to stock.
Guess the question is what does that do to your tune?
Mine isn't a GT so not sure. But can you reflash the tune and cause the transmission to relearn everything?
After Ford Changed my fluid it was shifting strange but reloading the cobb tune fixed it.