My 2015 GMC has 35 gallon tank. Started in Orlando Fl at 14.4 MPG drove home Savannah Ga back to Jacksonville Fl and home around town a little, it is learning now it gets 15.1 MPG.
Will find my plugs soon and gap up. See how MPG goes then.
Below was for my 1997 Chev truck it is wrecked now no road driving
As for my dissolving aspirin I used 1/2 oz or less H2O2 to dissolve 8 uncoated aspirin then added 3 oz EverClear 190 proof then filtered thro 4 layers white kitchen paper towels at each fillup from 25 to 28 gallons.
My 2015 GMC truck is now up to 17.2 mpg -- have done nothing to it yet-- when does computer stop " learning " increasing mpg ?
Now my 2015 GMC truck gets 19.4 mpg still learning.
Have been looking for PCV valves found 1 on driver side of engine but have not found other side yet, pictures from parts shop only shows driver side PCV valve.
Ask again today from another parts shop same thing for PCV valve, also ask about EGR and was told did not have EGR valve on my truck.
The following user(s) said Thank You: Ron Hatton, Michael Lee, CLAUDIO CORDOVA
Great, Gerald! This is encouraging to see. You're still using MPG Remedy, your mix sounds like what you've posted about in the past. Your example w/ MPG R seems to show that "Less is More" with it. When you deal w/ the PCV valve, I'd expect further gains. Right now your info indicates over 33% MPG gain.
Good for you, Gerald!!
Gadgetman Reno, NV
Thanks Tracy I have not done anything to truck yet but change oil 2 times. Did take plug out but no way to adjust gap with no foot to on plug to adjust. So far only found 1 PCV valve and no EGR valve