Useless Information

[swathdiver]

We all just need to get a magnetic fuel saver and get 15% better mileage

Don't forget the electric turbo and the twirly vane that spins the air in circles between the air filter and throttle body! LOL Dollar bills will be pouring out of our tanks with all those mods combined!

1978 Tahoe (gone)

Is this to see if we're paying attention? LOL

 

[RST Dana]

Don't forget the electric turbo and the twirly vane that spins the air in circles between the air filter and throttle body! LOL Dollar bills will be pouring out of our tanks with all those mods combined!

Is this to see if we're paying attention? LOL

Exactly.

 

[BG1988]

I usually comment more on CPM compared with GPH. In the instance you referenced, I did not focus on price because the alcohol content came from a variety of fuels with wildly differing prices.

Since the switch to ACDelco's engine oil and the drag reduction clips on the front brakes, the truck's fuel economy has been awesome for what she is, 93 octane gasoline costing between seventeen and eighteen cents per mile, getting over 16 mpg on a tank of fuel, usually Chevron 93 or Mobil 93 with an alcohol content of 5%.

Went to Sunoco and took on E30 the other night to try it again. Know what the alcohol content was? 4%!!!! Basically 87 octane! Yuck! The motor is tuned for 93 so I have to baby it until empty. Was going to drop it down six or seven gallons and put E85 in it but was too busy and figure I'll just run one or the other for a time, kinda miss straight E85 but I've needed the range between fills with 93 and several stations have had good prices on it too.

My previous average for running gasoline was twenty-three cents a mile and now we're spending .17-.18. Prices have come down a little but the truck has gotten more efficient with that oil and those drag reduction clips. I wonder where'd she be with highway tires and not these KO2s???

• 5492 Total Miles Tracked
• $4.11 Avg Price/Gallons
• $16.74 Avg Price/Fuel-up
• $0.178 Avg Price/Mile
• $1,004.17 Total Spent

Cost Analysis

23.0(-0.1)
Avg MPG

17.1
Last MPG (MAP sensor issues duh..)

34.3(7/15/19)
Best MPG



Over the last 6 fill ups i averaged 24.985MPG

 

[swathdiver]

• 5492 Total Miles Tracked
• $4.11 Avg Price/Gallons
• $16.74 Avg Price/Fuel-up
• $0.178 Avg Price/Mile
• $1,004.17 Total Spent

Cost Analysis

23.0(-0.1)
Avg MPG

17.1
Last MPG (MAP sensor issues duh..)

34.3(7/15/19)
Best MPG



Over the last 6 fill ups i averaged 24.985MPG

Well, here's my comparison:

-5490.9 Miles
-$2.80 PPG AVG
-390.75 Gallons
-$1090.22 Spent
-$0.187 CPM AVG (E30, E85 & 93)
-14.98 MPG AVG
-17.33 MPG BEST Tank

 

[swathdiver]

Tried E30 again but they are not mixing it right, wound up with a 4% alcohol content! So basically 87 octane on a 93 tune! I babied it and still got 16.03 MPG on that tank.

Last six tanks averaged 16.20 MPG; not bad for a 4x4 with KO2s and 3.42s with a fat man driving it!

Put her on E85 last night, will cost a little more but I miss the power. I'll indulge myself for a tank or two. I Ubered with the truck last night for just over a hundred miles and still got 12.8 MPG burning E85 while keeping drunks out of jail and innocents out of the morgue.

Over the last couple weeks I noticed a slight unease while driving on the highway, not as tight or... the words escape me, not as sure footed at speed. Anyway, I was underneath checking the fluids and noticed that the swaybar end links were missing bushings on each side.

ACDelco had some with blue bushings but went with GM OE, just like the factory ones. When those eurethane bushings first came out, they were squeaky as all get out, no thanks! And made the cars ride harsh as well, no thanks on that one too!

Going to put them on tonight or tomorrow.

 

[BG1988]

Tried E30 again but they are not mixing it right, wound up with a 4% alcohol content! So basically 87 octane on a 93 tune! I babied it and still got 16.03 MPG on that tank.

Last six tanks averaged 16.20 MPG; not bad for a 4x4 with KO2s and 3.42s with a fat man driving it!

Put her on E85 last night, will cost a little more but I miss the power. I'll indulge myself for a tank or two. I Ubered with the truck last night for just over a hundred miles and still got 12.8 MPG burning E85 while keeping drunks out of jail and innocents out of the morgue.

Over the last couple weeks I noticed a slight unease while driving on the highway, not as tight or... the words escape me, not as sure footed at speed. Anyway, I was underneath checking the fluids and noticed that the swaybar end links were missing bushings on each side.

ACDelco had some with blue bushings but went with GM OE, just like the factory ones. When those eurethane bushings first came out, they were squeaky as all get out, no thanks! And made the cars ride harsh as well, no thanks on that one too!

Going to put them on tonight or tomorrow.

Before you fill up you can ask the clerk for a nutritional facts sheet so you can get the right one

 

[swathdiver]

Before you fill up you can ask the clerk for a nutritional facts sheet so you can get the right one

I have talked to the owner before but I usually go there in the mornings, between 2 am and 4 am and nobody is there, the pumps are on but nobody is home, or so it seems. I've made a sheet of the alcohol contents on the days that we purchased his fuel and will show it to him next time I'm up that way.

 

[avalonandl]

My Denali says engine hours are 4891..... Is that a lot?

 

[swathdiver]

My Denali says engine hours are 4891..... Is that a lot?

I don't think so. Mine was reset twice. If not, my truck's average speed would've been 70 mph! Divide mileage by hours to see truck's lifetime average speed. Mine is 28 MPH.

 

[DougAMiller]

My Denali says engine hours are 4891..... Is that a lot?

Mine's not home right now, so can't get the exact number, but it's about 6800 hrs @ 179,000 mi.

 

[swathdiver]

Mine's not home right now, so can't get the exact number, but it's about 6800 hrs @ 179,000 mi.

That's about 26 mph average speed, not bad and very likely never reset. Mine has reset at least twice.

 

[gooffeyguy]

That's about 26 mph average speed, not bad and very likely never reset. Mine has reset at least twice.

How does it get reset, and how would you know if it has?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[DougAMiller]

How does it get reset, and how would you know if it has?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

Sometimes they just seem to reset themselves. Mine has done it a couple of times. I suspect it's a software bug. Seemed to happen around 1000 hours, mine hasn't done it in quite a while. I programmed the hours back in as soon as I noticed it, so mine may be off by a few, but it is pretty close.

 

[HiHoeSilver]

How does it get reset, and how would you know if it has?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

The only way I know of to tell is calculating average speed and seeing its impossible, like @swathdiver's 70 mph.

 

[mountie]

My gas mileage is tough to compare since most of my driving is a less distance of 8 miles.
So when you drive only local your MPG is naturally awful. But I fill up once every 6 weeks.

I use regular grade Shell gas...... Should I be using a higher grade anyway??

 

[gooffeyguy]

The only way I know of to tell is calculating average speed and seeing its impossible, like @swathdiver's 70 mph.

So if the vehicle is only used for family road trips and sees highway speeds 90% of it's life, that engine hour figure is impossible?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[swathdiver]

How does it get reset, and how would you know if it has?

Mine reset when my youngest daughter ran the battery dead one evening at church. All kinds of codes set and gremlins popped up, like the navigation getting so bright it threw a too bright code. All was well the next day when the battery got a full charge on a long run.

My gas mileage is tough to compare since most of my driving is a less distance of 8 miles.
So when you drive only local your MPG is naturally awful. But I fill up once every 6 weeks.

I use regular grade Shell gas...... Should I be using a higher grade anyway??

I would but you don't HAVE to. Just my preference. I can always count on Shell to deliver about the worst MPGs possible too. My daughter recently re-affirmed this when she filled up her little Kia at a nearby Shell and noticed how much less range she had over the usual places, and WaWa too!

 

[gooffeyguy]

I would think that info would be stored in a non-volatile memory area that wouldn't get reset if the battery was disconnected or ran down, kind of like the mileage

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[swathdiver]

I would think that info would be stored in a non-volatile memory area that wouldn't get reset if the battery was disconnected or ran down, kind of like the mileage

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

There's an hour meter in the radio of my 2004 Pontiac Montana. That meant the radio at least had 5,800+ hours on it. It's probably original, don't remember its build date. So having said that, I'm certain there are other hour meters stored elsewhere in our trucks, probably in the radios somewhere and in the Onstar system and probably the ECM and or TCM too. Can't see them with the Tech-2, at least I haven't found them but the info may be available in those secret menus.

 

[HiHoeSilver]

So if the vehicle is only used for family road trips and sees highway speeds 90% of it's life, that engine hour figure is impossible?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

I think if you're over 50ish, it just seems pretty unlikely.