Was This Guy Insane?

[Bmart]

So i was talking to a guy today, he was asking me how my truck was on gas. I told him not bad, just about 21mpg on my last tank. Then he tells me his 2000 5.3l sierra gets 28 mpg! Apparently he's put on a new intake and exhaust.... And he was pretty old so i assume he drives like an old man.... but still... is it even possible???

[RyanbabZ71]

No.

[VR021302]

So i was talking to a guy today, he was asking me how my truck was on gas. I told him not bad, just about 21mpg on my last tank. Then he tells me his 2000 5.3l sierra gets 28 mpg! Apparently he's put on a new intake and exhaust.... And he was pretty old so i assume he drives like an old man.... but still... is it even possible???

 

 

maybe if it was all hwy at about 50 mph with a tailwind

[geektoad]

So i was talking to a guy today, he was asking me how my truck was on gas. I told him not bad, just about 21mpg on my last tank. Then he tells me his 2000 5.3l sierra gets 28 mpg! Apparently he's put on a new intake and exhaust.... And he was pretty old so i assume he drives like an old man.... but still... is it even possible???

 

 

maybe if it was all hwy at about 50 mph with a tailwind

 

 

downhill.

[mfennema]

So i was talking to a guy today, he was asking me how my truck was on gas. I told him not bad, just about 21mpg on my last tank. Then he tells me his 2000 5.3l sierra gets 28 mpg! Apparently he's put on a new intake and exhaust.... And he was pretty old so i assume he drives like an old man.... but still... is it even possible???

 

 

maybe if it was all hwy at about 50 mph with a tailwind

 

 

downhill.

 

 

in neutral.

[Darkanion]

Maybe he had a trick HHO setup in the back and some Tornados under the hood???

 

 

 

[Draenor]

TB spacer?

 

 

 

 

 

 

[VR021302]

oh and drafting behind an 18-wheeler

[Darkanion]

oh and drafting behind an 18-wheeler

 

I know there's a "Mexican Made" joke in here somewhere... But, I just can't find it...

[09Jimmy]

Window sticker on my 2009 GMC RCSB 4X4 with 5.3 and 4.10 gears says 27 MPG highway, I have gotten 30 MPG. I've gone 630 miles on 21 gallons.

[66nova]

Window sticker on my 2009 GMC RCSB 4X4 with 5.3 and 4.10 gears says 27 MPG highway, I have gotten 30 MPG. I've gone 630 miles on 21 gallons.

 

 

I want to see a copy of the window sticker.

 

I believe the 21mpg, and maybe 30 for a SHORT period but I know GM is not advertising 27 mpg unless you have a Hybrid.

[JNG]

http://www.gm.com/experience/fuel_economy/...brid_111708.jsp

GMC Sierra HYBRID 1500 - 2WD model fuel economy is 21 mpg city and 22 on the highway. (US Gallons)

 

Now if he was Canadian then it is possible:

http://www.gm.ca/gm/english/vehicles/gmc/s...tions?ADV=85403#

6.0l Hybrid

2WD: 29 / 31 / 30

4WD: 27 / 29 / 28

5.3l LY5

2WD:

19 / 28 / 23 (4-speed auto.)

19 / 29 / 23 (6-speed auto.)

4WD:

19 / 27 / 22 (4-speed auto.)

19 / 28 / 22 (6-speed auto.)

 

There is a difference between US Gallons and the Gallon used in Canada.

1 Imperial Gallon = 1.2 US Gallons So it makes sense that a "Canadian Gallon" would get you more miles per gallon since it is bigger.

 

If the old guy is not Canadian or British then he is just plain crazy!

[VR021302]

Maybe he transplanted an AFM equipped engine in his truck

 

 

 

[JNG]

Bmart I see from your profile that you are from Ontario, Canada so it is true. The old guy was talking about imperial gallons!

[geektoad]

Window sticker on my 2009 GMC RCSB 4X4 with 5.3 and 4.10 gears says 27 MPG highway, I have gotten 30 MPG. I've gone 630 miles on 21 gallons.

 

 

I want to see a copy of the window sticker.

 

I believe the 21mpg, and maybe 30 for a SHORT period but I know GM is not advertising 27 mpg unless you have a Hybrid.

 

 

Not even with a hybrid. The hybrid's boost the city rating to 20MPG, doesn't help highway at all.