Clicked over 82K on my ‘14 Silverado today. Have never been able to tell if it’s in 4 or 8 cylinder mode unless I look at the display.
Aaron Campbell
Barling, AR
2007 Bass Cat Sabre
2011 Merc 175 Pro XS
2018 and can't tell it's 4 or 8 unless I look at display. Didn't even know it had the feature for a few weeks
2014 Silverado - no issues at all.
Phillip "Wade" Norris
2015 Ranger Z520C
250 Merc Optimax Pro XS (S# 2B113454)
25P Fury - 4 blade all holes open
I have a Range Technology module on my 2013 Sierra. I like it. Lost just under 1 MPG on the highway if I leave it in. Lost no mileage towing, or around town, as best I can tell. I feel the difference mostly when towing, and in town.
You can remove at any point if you’re going on a long highway trip.
The only time I remove mine is if I’m going into the dealer for service work. A rare occasion.
BassCat Sabre FTD
Mercury 150 Optimax
"It's just fishing"
Honora Primum Vel Nullum Omnin Honorem
Have one on my 2016 Silverado
Like Renegade said, if your truck has the manual shift option, and most late model trucks do, use the M5 mode. When putting the truck into gear, go all the way to the M setting. On the shift handle, select gear 5. When it is set to M5 it locks out the V4 and stays in V8 mode all the time. If your highway traveling and reach enough RPM it will automatically shift into 6th gear. Not sure about the 8 speed trucks but you can sheck it and see if it works.