AR15.Com Archives
 Chevy experts, 95 Suburban 2500 w/454 & 4x4. How bad is the gas mileage (unloaded) city/hwy?
EMSflyer  [Member]
3/6/2005 10:31:10 AM
After almost getting t-boned by a pick-up while driving my much beloved, small, sporty German car, I decided I need an SUV to carry & protect: self/kids/toys/big dog.

Going to buy used cause I'm already making payments on wifes ride. She always gets the new car cause she is a keeper and don't want her to get stuck with car problems and get picked off by some perv.

Back to my question....

Found a clean 95 suburban with 150k miles. The lot owner seems willing to deal on this one because the 454 gas mileage is scaring folks off this one. I was really looking for one with the 5.7 or a diesel myself.

This Suburban is a 2500 series, 454 cid, auto trans, 4x4, tow package etc.

I know the gas mileage will be horrible, but just how bad will it be?

I only live about 7 miles from my office and just drive about 8000 miles a year so the big engine won't be that big a deal for me.

Also what problem areas should I be aware of? I'll prob have a mechanic look at it before I buy, assuming we can agree on price.

Any Chevy experts out there? What do ya'll think?

Thanks in advance,

Flyer...

vanilla_gorilla  [Team Member]
3/6/2005 10:32:19 AM



ETA: On a more helpful note, look for something in the half-ton flavor. My Tahoe is 4door, 4x4, with the 5.7/auto and I bought it in September for 12,900 with 59K miles on the clock. Even with the smaller motor and careful driving habits, my in-town mileage hovers around 13-14, with closer to 16-17 on the highway. The vehicle you're looking at just has far too many miles and with the 4x4, you're looking to be replacing ball joints very soon, which can get expensive.
sniper1az  [Member]
3/6/2005 10:37:04 AM
Are you really serious?

8 to 10 mpg tops.
vmax84  [Member]
3/6/2005 10:41:39 AM
I feel...............

vmax84
Jeepster  [Member]
3/6/2005 10:43:42 AM
The mileage will be in the low-teens at best. But you will be getting a vehicle of huge capabilities (i.e. load carrying capacity, ruggedness, off-road ability, collision safety). Just make sure the mechanicals are all in order before you buy.

Mileage is overrated, IMO. It's more important that you don't compromise your lifestyle due to the vehicle you own.

I'd buy that truck in a second if it was a good deal.
Mojo_Jojo  [Team Member]
3/6/2005 10:46:55 AM
A friend at work had one just like the one you are talking about, except I think it was a 1993 model. Same engine, auto trans, 4x4, tow pkg, loaded, etc. He got a max of 13mpg highway, and 8-10mg around town.

Dragracer_Art  [Member]
3/6/2005 10:48:33 AM
Well...
I have a '94 with the 454...
The 42 gallon tank will get me from Reading, PA to Mooresville, NC nonstop...
Last time I did it, the odometer said 505 miles, and I used 39-40 gallons of gas...

That's approx 12.5-13mpg...

My 2000 Dually with the Vortec 454 does pretty much the same...but makes alot more power.

You'll be much happier with the Big Block in that truck... It's WAY too heavy for a little 350.
The 454 will live ALOT longer than a 350 will.
My Suburban has 225k on it, and the motor has never been apart. I bought it with 176k on it.
350's usually need head gaskets around 150k...

I'm not willing to compromise my family's safety just to save a few dollars in gas....
A big heavy 454 powered Suburban is one of the heaviest, safest vehicles on the road...
Ever see the COPS episodes ? A few episodes they show them chasing a Suburban and another chasing a Chevy Dually... The dually was wrestling with a tractor-trailer,(and went unharmed) and the Suburban was knocking trees down to get away...

It's best to be the biggest fish in the ocean...

Just my two cents...

There's alotta iron, and 908 cubic inches in my driveway...


GunLvrPHD  [Team Member]
3/6/2005 11:12:17 AM
I forget what the big engine gets but probably around 12-13mpg max on the freeway. The Suburban is a vehicle which does get better mpg when you drive is slower. My 1500 (5.7L) does really well around 60 mph. I can get very close to 18 mpg at that speed. Mine is mostly used as a "sports utility vehicles", so it's driven on weekends or hauling lots of people or materials. It isn't used as a commuter and gets about 3,500 miles a year.

Just a price comparison, I bought mine, a 1995 5.7 1500 with most options except leather seats and 4x4 for $6300 two years ago. The Suburban had 119k miles and was in beautiful condition (the plastic wrap was still on all the carpets!!). Of course 2 years driving and parking in the DC area it now has lots of paint nicks and a little vandalism from some enviro-Nazis.

1995 is a good year to buy. The 1996 on were OBD-II and there was also a serious transmission programming problem in some of them 1996-98. The biggest disadvantage of the 5.7 vehicles is the transmission is sort of wimpy and typically dies between 100k and 160k. The older Suburbans also have huge gas tanks--mine is a 44 gallon model. I can't remember the last time I bought gas but it was at least 2 months ago.

Are you loooking on Ebay? I'd be patient, you will find what you need but it will take a little time. The diesel models are hard to find and fairly expensive, but it seems like they run forever.

GunLvr
newblkrifle  [Member]
3/6/2005 11:43:39 AM
Buy '96 or later (Vortec) for much more power and probably better mileage. Pre 96 motors are dogs.
Don't buy a 6.5 diesel! They are gutless, problematic piles of shit.
Now, If you can find a newer one with the Duramax diesel (6.6) you'll get power and mileage.
Oh yeah it would have to be a crew cab truck. They don't offer the Duramax in SUVS yet.
My crew cab 3500 4x4 will get 17mpg in the summer with a minimum of 600 lbs in the back at all times. It will also waste a big block gas motor in acceleration and pulling power.
pparonin  [Member]
3/6/2005 11:59:57 AM
I have a '95 Yukon 1500 5.7ltr 4x4 w/tow pkg. I bought it in 2001 with a little over 100k. At 159k it spit a rod, replace the engine with a 5.7 from a '99. Its at 189,000 now. Haven't had any other drive line troubles but, I do keep up with service when needed also. Had the front end reworked a month ago: ball joints (upper/lower),drag link,tie rod ends,idler arm,etc...
I use it to tow a 28' center console boat (weight is around 6500lbs) and it does quite well but, the next one will be at-least a 2500 series. My MPG is about the same as everyone else when not towing the boat.
I agree with safety aspects of a full size over gas mileage for my family on road trips and around town.
I'll pay extra $$ for gas to keep them safe on the road.

sgtstinger  [Member]
3/6/2005 12:12:16 PM
CLICK ON ME!!!

WaWaTuSi  [Team Member]
3/6/2005 12:15:51 PM

Originally Posted By sgtstinger:
CLICK ON ME!!!






Liberal propagandist crap!


Note how they make the "esuvee" a monster?


Typical liberal dung!



Move along....


sgtstinger  [Member]
3/6/2005 12:34:25 PM

Originally Posted By WaWaTuSi:

Originally Posted By sgtstinger:
CLICK ON ME!!!






Liberal propagandist crap!


Note how they make the "esuvee" a monster?


Typical liberal dung!



Move along....





Relax, man...

I wasn't being serious, I did for a laugh.

I know those folks are a bunch of liberal asshats...they were on the Today show with Katie Couric. How much more liberal can you get?
TexRdnec  [Team Member]
3/6/2005 12:47:11 PM
had a '95 ext. cab 4x4 longbed truck with the 454 and 4l80e

sold it at a little over 100,000 only problems were an ABS speed sensor going out and an alternator, good truck overall

454 is an excellent motor, damn near bulletproof. we've always had big block chevys, my favorite is a tossup between our '91 and our '98, both are still on the road with well over 250,000 and both ran DAMN good

+1 on mojo_jojos mileage estimates

i've got a 496 now and get about 9 overall
EMSflyer  [Member]
3/6/2005 12:49:40 PM
Edit....Thanks for all the good intel....

The Suburban I'm looking at is a lot like the one in the pic, except the silver is only along the bottom of the body panels and on fender flares.

I would like to find a good one in white so it's not so hot inside in the summer.

I'll let you all know if it follows me home this week.

Later,

Flyer
WaWaTuSi  [Team Member]
3/6/2005 12:53:08 PM

Originally Posted By sgtstinger:

Originally Posted By WaWaTuSi:

Originally Posted By sgtstinger:
CLICK ON ME!!!






Liberal propagandist crap!


Note how they make the "esuvee" a monster?


Typical liberal dung!



Move along....





Relax, man...

I wasn't being serious, I did for a laugh.

I know those folks are a bunch of liberal asshats...they were on the Today show with Katie Couric. How much more liberal can you get?






Oh few.... And here I was getting taped up for a fight...


Seriously I was only offering my opinion on that SUV snuffleupagus thing and not you or your post. I figured you knew by your choice of "smileys"!


Those things say so much! I mean what says it better than a dancing bannanna
Dragracer_Art  [Member]
3/6/2005 2:06:11 PM

Originally Posted By EMSflyer:

I would like to find a good one in white so it's not so hot inside in the summer.

Flyer



A quality tint job goes a LONG way in creature comfort...
I had ours done right after buying it in '01.
I had the back done in 5% limo tint, and the driver/passenger front doors done in lighter 35%.
Mid August heat goes unnoticed when the front and rear AC are running... The kids actually bundle up in blankets when we go on a trip to the shore.

If you do go with a Suburban, be sure to get one with rear heat and AC. It DOES make a big difference.
pv74  [Team Member]
3/6/2005 2:21:45 PM

Originally Posted By sgtstinger:
CLICK ON ME!!!




"More than four in 10 Americans think they are safer in an SUV than in a regular car (Source: National Consumer Survey, Opinion Research Corporation, January 2005)"


Well, no shit! Are they going to be safer in a GEO metro?

What a waste of money... Another touchy feely liberal "safety" capmpaign for "the children".

"Cost: $27 million

An additional $3 million will be allotted to an upcoming public service campaign through the Advertising Council.

No taxpayer money is being used to fund this campaign."

What a waste of 27 Million dollars... At least taxpayer money is not being wasted...



meltdown  [Team Member]
3/6/2005 2:30:26 PM
if it's your daily driver ... no way. If you're going to be driving your small car when you are by yourself ... that's a different story. I have three boys and a lot of junk in my truck. I Thought I needed a suburban to haul everything around but found most of my driving was just me and my junk. The mileage ate my lunch, when you stick $60 bucks in the gas tank and it lasts three days max ...
carbonblack  [Member]
3/6/2005 2:35:20 PM
Mileage empty and loaded will be about the same most times. It will get really low when loaded to the max, but 5-8k behind it will not drop the economy that bad. Around here most 454 TBI owners get 8-10. Vortec gets a bit better, but has more things to go wrong. Can't go wrong with a 1/2 ton 4x4 sub either.
rayra  [Member]
3/6/2005 2:44:40 PM
9-10mpg, tops.
14mpg tops with a smaller engine.
Sucks either way. If it will be an occasional driver, short mileage, or you HAVE to have the 454 power, get it. Otherwise you are doomed, DOOMED I say.
oneshot1kill  [Team Member]
3/6/2005 3:07:38 PM

Originally Posted By Dragracer_Art:
Well...
I have a '94 with the 454...
The 42 gallon tank will get me from Reading, PA to Mooresville, NC nonstop...
Last time I did it, the odometer said 505 miles, and I used 39-40 gallons of gas...

That's approx 12.5-13mpg...

My 2000 Dually with the Vortec 454 does pretty much the same...but makes alot more power.

You'll be much happier with the Big Block in that truck... It's WAY too heavy for a little 350.
The 454 will live ALOT longer than a 350 will.
My Suburban has 225k on it, and the motor has never been apart. I bought it with 176k on it.
350's usually need head gaskets around 150k...

I'm not willing to compromise my family's safety just to save a few dollars in gas....
A big heavy 454 powered Suburban is one of the heaviest, safest vehicles on the road...
Ever see the COPS episodes ? A few episodes they show them chasing a Suburban and another chasing a Chevy Dually... The dually was wrestling with a tractor-trailer,(and went unharmed) and the Suburban was knocking trees down to get away...

It's best to be the biggest fish in the ocean...

Just my two cents...

There's alotta iron, and 908 cubic inches in my driveway...

home.comcast.net/~yullose001/DSC01949002.JPG
home.comcast.net/~yullose001/DSC01950002.JPG




We have a customer with 454 Suburban 4x4, I think it's a '92. He averages just around 10-11mpg in town and he's very happy with it. On the dyno, it recently saw 14mpg average over the inspection run which was very good for this truck.

It probably won't get much better mileage than that. If mileage is not an issue(and it shouldn't be if you want a Suburban, even with a smaller motor) then go for it.
chrome1  [Team Member]
3/6/2005 3:13:46 PM
I sold a 95 with the big block because it was such a pig .
7-8 mpg around town and 14 tops on the highway .
It had the 42 main tank and a 30 gal 2nd , and it would empty
both in a week around town

As for the Diesel . The 5.7 was a car motor and real junk .
In 95 you would find a 6.5 TD , better but still had problems
with injector pumps and lift pumps .
Its predecessor the 6.2 non turbo was a slug with 0-60
times you measured with a calendar .

GunLvrPHD  [Team Member]
3/6/2005 3:15:09 PM
One last thing...check highwaysafety.org for the Insurance Institutes safety ratings. The Suburban/Yukon XL do great in those ratings. They are about the safest thing on the road in terms of injury and insurance payouts for injury, property damage, and theft.

GunLvr
newblkrifle  [Member]
3/7/2005 11:41:45 PM
btt
Specop_007  [Member]
3/7/2005 11:43:12 PM
I believe my grandfather was getting around 8-11 depending. he had (I think) a 2002 Chevy with the 454. He traded it off for the Duramax, and hasnt regretted it one bit.
PaDanby  [Member]
3/8/2005 12:37:00 AM
I have a 90 extended cab 4x4 with the 350 I get close to 18 pulling a tent trailer. Probably 13 around town. Unless you really really need a big block in a Suburban, go one click down to a Tahoe sized vehicle and then you won't feel like you are using two cylinders to pump gas from the tank directly to the pavement.

My neighbor (who is also my mechanic and I know he has tinkered the snot out of it to maximize his mileage) towed his trailer to Convict Lake in the Sierras with his 4x2 Sub from Brea in Orange County, I towed my tent trailer, he filled all the way up 3 times. I filled once in Bishop. I probably could have made it the entire way but would have been sucking fumes. He has the 40 gal tank I have the 24. You figure how much you really are going to use the extra power.

hsvhobbit  [Member]
3/8/2005 8:45:55 AM
For a 7 mile comute each way?? Mileage won't be a big problem. Since the motor will barely get warm in that distance, figure a gallon of gas each way. The really nice thing about the big block, even though it's not making huge HP numbers (if i remember it's like 230-250hp), it's got tons of torque and if needed, CAN be modified for some decent HP.
DriftPunch  [Team Member]
3/8/2005 8:59:31 AM

Originally Posted By newblkrifle:
Buy '96 or later (Vortec) for much more power and probably better mileage. Pre 96 motors are dogs.



State your case...

I've got a 1994 GMC K1500 with a 350 and have no gripes at 154,000 miles. One thing I've learned on arfcom is that many people want their trucks to perform like musclecars.
hamptonyellowdog  [Member]
3/8/2005 9:15:32 AM

Originally Posted By sniper1az:
Are you really serious?

8 to 10 mpg tops.




+1 my buddy got a one ton crew cab with a cap so basically it is a suburban. That is what he gets. The good news is it doesn't get any worse when you tow.
cheeks  [Member]
3/8/2005 11:35:06 AM
Looks like the technology is out there to transform Vegetable Oil into a usable fuel for Diesels. There is a Movie producer that runs his Mercedes on it. Somehow he filters out the fats and such and pours it in his car and drives off. Interesting. We should just grow our fuel. I love Diesel engines, now days they put out as much power as gas burners.

I drove a 2003 F350 Fx4 that would spin all 4 rear tires on dry pavement.
Wobblin-Goblin  [Team Member]
3/8/2005 11:45:34 AM
Look for Nationwide to show up shortly and feed us his tale of a 15 year old 454 Suburban getting 20mpg towing Rhode Island while going uphill...both ways.

pparonin  [Member]
3/8/2005 11:52:31 AM
Dont want to hi-jack his thread but, got a question?

What size tires is everyone running? how do you think it effects the performance and mph of your trucks/suv's?

I have 285/70r/16's BFG AT's.
cheeks  [Member]
3/8/2005 11:54:09 AM
http://www.biodieselamerica.org/biosite/index.php?id=141,0,0,1,0,0

here is the link.
Sydwaiz  [Team Member]
3/8/2005 12:12:51 PM

Originally Posted By Dragracer_Art:
You'll be much happier with the Big Block in that truck... It's WAY too heavy for a little 350.
The 454 will live ALOT longer than a 350 will.
My Suburban has 225k on it, and the motor has never been apart. I bought it with 176k on it.
350's usually need head gaskets around 150k...








I have a '96 2500 extended cab long bed with the 5.7l and 132k miles and a '96 3500 7.4l dually with 61k miles.
5.7l sprung a leak in the intake manifold gasket at 110k. I hear they are prone to that with the plastic top end.
7.4l blew a headgasket at 60k not to mention countless other problems.

The 350 has always been a more reliable motor than the 454. And the 350 has had more than enough power to pull my boat or car trailer.

ETA: The 350 gets around 14mpg when I'm lucky, but then again I have a lead foot.
Nozzleman  [Team Member]
3/8/2005 12:19:33 PM
If you decide to get it, get the timing chain checked. 150K is about the MAX for that item....don't want the pistons doing a patty-cake with the valves or you will talking serious $$$ to fix it.
jtw2  [Team Member]
3/8/2005 12:22:32 PM
I have a '99 4x4 2500 w/454 and I get 14 mpg no matter what. Up hill, down hill, hwy, city, doesn't matter: 14mpg. I just rolled 128,000 miles on it.

This is one of the best most trouble free vehicles I've ever owned.
newblkrifle  [Member]
3/11/2005 1:07:02 AM
Suvs are overpriced!
Get a crew cab truck and have the interior room and a place to put the dirty stuff without messing up the interior!
Don't forget, Diesels make more power and don't suck the gas that the gassers do!
And last but not least, please don't buy a useless pile of Ford or Dodge. You will be sorry if you do!
newblkrifle  [Member]
3/11/2005 1:21:59 AM
bump
vanilla_gorilla  [Team Member]
3/11/2005 1:27:18 AM

Originally Posted By pparonin:
Dont want to hi-jack his thread but, got a question?

What size tires is everyone running? how do you think it effects the performance and mph of your trucks/suv's?

I have 285/70r/16's BFG AT's.



I run 285/75's on the Hoe, and they're the reason my mileage went down a little from the 245's it came with. Needs better tires than the 3.42's I have. I would prefer 4.10's but that there is good ammo money to be spending on gears.