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Gas Mileage #732450
January 28th 2018 6:15 pm
January 28th 2018 6:15 pm
Joined: Sep 2017
Posts: 18
Oklahoma
abcde06991 Offline OP
stranger
abcde06991  Offline OP
stranger
Joined: Sep 2017
Posts: 18
Oklahoma
What are some tricks or stuff i can do to increase gas mileage? I drive a 95 Vandura and it gets about 10-12 mpg


95 G2500 Vandura
[Linked Image]
Re: Gas Mileage [Re: abcde06991] #732453
January 28th 2018 6:48 pm
January 28th 2018 6:48 pm
Joined: Aug 2001
Posts: 11,623
Fircrest, WA
Reed Online content
Maniac
Reed  Online Content
Maniac
Joined: Aug 2001
Posts: 11,623
Fircrest, WA
10-12 is about average. Fully inflate your tires, carry less weight, go no faster than 55, accelerate slowly, run synthetic oil, run the factory temp thermostat, use overdrive if your van has it. If you make it to 14 MPG, let us know.


Windows- they're what make a van worth owning!
Re: Gas Mileage [Re: abcde06991] #732457
January 28th 2018 7:52 pm
January 28th 2018 7:52 pm
Joined: Jun 2010
Posts: 13,359
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,359
Van Diego California
It should get better than that ..cause I get 13-14 with my 454..... the best way to increase milage is to walk ....lol


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Gas Mileage [Re: abcde06991] #732461
January 28th 2018 9:50 pm
January 28th 2018 9:50 pm
Joined: Mar 2016
Posts: 309
Tucson,Az.
H
Hasan Ben Sobar Offline
enthusiast
Hasan Ben Sobar  Offline
enthusiast
H
Joined: Mar 2016
Posts: 309
Tucson,Az.
Every motor combo has it's "sweet spot". My Cummins RAM gets better MPGs at 90 then at 75. My 69 Grand Prix(stock 400/M-40/3.23s) returned better MPGs at 85 then at 55.Now this was back in the day ,so fuel formulation might have been a factor. One thing I do know is that "driving 55mph" is not practical , nor reasonable and sometimes it's suicidal. Not only that ,our vans were never designed with 55 MPH in mind.

Get a vacuum gauge and drive by it. You'll learn where the engine "likes" to be.

As to overdrives , they are nice and do work , but they need to be part of the entire "package". Just tossing a OD on your van could hurt fuel economy worse than running just 3 or 4 speed .


Tucson-it's a dry heat...like an oven
Re: Gas Mileage [Re: abcde06991] #732811
February 07th 2018 9:27 am
February 07th 2018 9:27 am
Joined: Sep 2013
Posts: 674
Indiana
tuner4life Offline
addict
tuner4life  Offline
addict
Joined: Sep 2013
Posts: 674
Indiana
If you want better mileage, don't drive something that weighs 2.5 tons and has the aerodynamic characteristics of a barn.

I have a 305 with 4 speed overdrive manual in my G20 and the best I have ever managed is 15 and that was completely unloaded with nothing in it (empty cargo van) and nearly all highway never going over 60 mph.

I do want to swap to a 5.3 LS at some point, and I'm curious how much better mileage that may net me. Not that I really care, just something I wonder about lol.


[Linked Image]
1985 Chevy G20 305ci/4spd Manual
Re: Gas Mileage [Re: tuner4life] #732817
February 07th 2018 10:06 am
February 07th 2018 10:06 am
Joined: Sep 2005
Posts: 8,355
Georgia, USA
CatFish Offline
carpal tunnel
CatFish  Offline
carpal tunnel
Joined: Sep 2005
Posts: 8,355
Georgia, USA
Originally Posted by tuner4life
If you want better mileage, don't drive something that weighs 2.5 tons and has the aerodynamic characteristics of a barn.

I have a 305 with 4 speed overdrive manual in my G20 and the best I have ever managed is 15 and that was completely unloaded with nothing in it (empty cargo van) and nearly all highway never going over 60 mph.

I do want to swap to a 5.3 LS at some point, and I'm curious how much better mileage that may net me. Not that I really care, just something I wonder about lol.


The real "stars" of that type of swap are the great six speed transmissions and the engine/trans control systems with the tow/haul option.... yay

My2%


They can have my fried bologna sandwich when they pry it from my cold dead hands.
Re: Gas Mileage [Re: abcde06991] #735321
April 20th 2018 9:40 am
April 20th 2018 9:40 am
Joined: Dec 2011
Posts: 146
Charlotte, North Carolina
J
JDouglas Offline
member
JDouglas  Offline
member
J
Joined: Dec 2011
Posts: 146
Charlotte, North Carolina
My 5.0L engine struggles going up little inclines and I have to downshift out of OD a lot while doing highway driving. The best MPG I can muster is about 16 mpg and that is keeping the speed under 70 and "drafting" one of those large 18 wheeler tractor trailer rigs. Otherwise, I manage about 13 - 14 mpg under normal circumstances.


[Linked Image]


1993 Chevy Van G20


Re: Gas Mileage [Re: abcde06991] #736220
May 11th 2018 9:26 pm
May 11th 2018 9:26 pm
Joined: Mar 2012
Posts: 216
canal fulton, ohio.
D
diamond_dave Offline
enthusiast
diamond_dave  Offline
enthusiast
D
Joined: Mar 2012
Posts: 216
canal fulton, ohio.
My 96 chevy hightop gets 14-15 city and 16-17 highway at 70 mph.


The ''stickitt inn'' a 1979 chevy cozy craft conversion

1996 chevy hightop

it's only the end of the world. . . . again.

[Linked Image]
Re: Gas Mileage [Re: abcde06991] #736261
May 13th 2018 2:28 pm
May 13th 2018 2:28 pm
Joined: Feb 2018
Posts: 15
CT
CapnKrispy Offline
stranger
CapnKrispy  Offline
stranger
Joined: Feb 2018
Posts: 15
CT
I was getting around 10mpg when I first bought my van (91 Vandura 2500 with a 5.7 with198k on it) I thought that it surly could do better, so I simply started by replacing my spark plugs, wires, distributor cap and rotor. Now, I'm around 15-16 city mpgs. My air filter is still pretty dirty but they didn't have a k&n in stock so it's in the mail, I hope that helps it out a bit too.

Re: Gas Mileage [Re: abcde06991] #736282
May 14th 2018 8:53 am
May 14th 2018 8:53 am
Joined: Feb 2018
Posts: 15
CT
CapnKrispy Offline
stranger
CapnKrispy  Offline
stranger
Joined: Feb 2018
Posts: 15
CT
My cap looked pretty good at first glance but upon further inspection.... This is what I found.

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