2017 Buick Regal 2.o Turbo Premium II AWD 55k miles

Hi Scotty:

Love your videos, expertise, and your mission (honesty!)

I was recently driving home on the highway (after a Ringo Starr concert) when my Buick (only 55k miles) started hesitating badly. I keep it well maintained with regular synthetic oil and filter changes

(Mobil-1 products, 5w/30 synth oil). Because it's a turbo, I only use top-tier 93 octane fuel. My immediate thoughts were bad gas, plugs, fuel syst blockage, or perhaps a tranny slippage. I've already had the trans fluid changed out at 30k miles and is currently reading at normal level. I don't use a dealer but the same TRUSTED mechanic  for 30 years (hope he doesn't retire any time soon.) I called him and scheduled an appt for a 55k mile full-service, which will be performed next week. To be safe, I have not used the turbo since this happened.

When time permits, I'd like to get your opinion on what might be happening to my car. It's happened again, each day, since the original hesitation, about a week ago.

Thank you for your time and Happy Motoring! 😎 

Mike