Truck sat until yesterday and the start up state of charge was back up to 63%. I unplugged all the USB adapters and the 12v adapter for the dash cam which has red light on it.
Ok, so two tanks of gas ago I filled her up with 93 octane from Chevron and two of their bottles of Techron. That tank had a lot of idling on it but still managed an average of 15.4 MPG with an alcohol content of 12%.
Then we refueled down south at another Chevron with 93 again (6%). On the trip north to home, the MPGs were 19.3 MPG by the time we pulled into the driveway. I've NEVER EVER NEVER seen fuel economy like that in this thing. We even hit some traffic and switched highways because of an accident.
Yesterday afternoon we made the same run down south and back north again in the evening. By the time we hit the highway she was reading 18.8 and struggling to stay there at 71 mph. But when I sped up to 73-74 the mpgs quickly climbed into the 19s and arrived at Grandma's at 19.3 MPG again. Somebody pinch me!
All that testing back in '17 and '18 never revealed a hint of this. My SV6 Montana gets better mileage the faster it goes but never seen that from this truck. On the way home however, my hopes were shattered, no matter how fast or slow I drove, the average mpgs kept dropping until it read 18.0 in the driveway. Still a record though.
Truck has some leaks and weeping underneath and have been slowly collecting parts and tools to replace seals and lines while watching the fluid levels. Still not enough to even mark up the driveway. Hope to get to it soon while the weather remains cool and hopefully stays dry.
Santa Claus has thus far gifted the truck an Inclination Sensor (17800432/22962506) for Christmas.
Merry Christmas fellas!