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SoCal205
02-21-2013, 11:03 PM
The family is growing and I'm looking at getting a suburban. I'm looking at one with an 8.1 liter and one with a 6 liter. Was wondering if anybody here has either and what kind of mileage they get not towing.

Jerseydave
02-21-2013, 11:24 PM
I had a 2000 3/4 ton with a 6.0 liter and a 2007 1/2 ton with the 5.3 liter
Mpg highway not towing was 13 for the 6.0 and 17 for the 5.3
Towing my X-star they both got 9-10 highway.

Your boat is much lighter, so in my opinion anything over the 5.3 liter is a waste.
I originally got my 6.0 to tow my 30 foot Formula (9000 lbs with trailer)

SoCal205
02-21-2013, 11:30 PM
I am looking to go a newer boat also how did the 5.3 handle towing your X-star?

drschemel
02-21-2013, 11:37 PM
Are you sure about 8.2? I have the yucon Denali XL and it has a 6.2 which is the biggest motor you can get in a Yukon. I think they used to offer a 250\3quarter ton version in the suburban but I don't think it had that big of a motor.
Anyway, I get about 14mpg round town, 10 if I use E85. On the road depends a lot on speed. Driving 65, I can average almost 20 mpg but 16-17 is more typical. As you can see from the previous post, the small displacement v8 does not get better fuel mileage in the real world. Don't be afraid of the 6L! The 250 version is geared lower and accounts for the poor fuel mileage.

SoCal205
02-22-2013, 12:12 AM
The 8.1 liter is offered in the tenth and eleventh generation 3/4 tons. Its also offered as a v12 in the eleventh gen.

Chred
02-22-2013, 12:25 AM
I Have owned three different GM trucks all with the 6L it is a very strong reliable engine in my opinion...
2000 Sierra 2500 Ext cab SLE approx 11MPG
2004 Escalade ESV Approx 16MPG
2007 Silverado 2500 HD Crew LTZ Approx 13MPG

All the same block but different mileage, all numbers are city driving not towing

Ski-me
02-22-2013, 10:43 AM
I have the 8.1L Yukon XL and around town I get about 10-11 MPG. 3:73 gears and about 32-33" tires.

When I tow the 94' 205, I get around 8-9 MPG at 75 mph. It tows it quite well.

When I got mine, I looked at the 6.0L and it only felt "OK" but not really "peppy". The 8.1L is a lot more snappy and more fun to drive. Especially with a vehicle that heavy. Generally speaking, you will probably lose about 1 MPG with the 6.0 vs the 8.1 but in my mind, it's worth it!

There are very slip pickings when it comes to aftermarket parts on the 8.1.....much more on the 6.0. But for general repairs, OEM parts, no problem.

It does drink oil so don't be alarmed. I go through about a quart every 2500-3000 miles and it's been that way since I bought it (approx 20,000 miles).

Here's the only pic I have right now....(dead boat battery) :rolleyes:

wakecumberland
02-22-2013, 12:36 PM
I owned a 2005 Yukon XL with the 8.1 and loved it. I sold it becasue I had a itch for the newer body style 2500 with the 6.0 and have since sold it to find another OBS with the big block! If you can find one with the 8.1 get it over the 6.0. My experience with the big block is that mileage is basically the same and actually a little better towing the boat than the 6.0. If you are doing any towing at all, do not buy a 1500 Suburban with the 5.3 as it is not enjoyable at all to tow with. They are designed as soccer mom vehicles. If you want a tow truck, you need the 2500!

orbeamlb
02-22-2013, 05:01 PM
The family is growing and I'm looking at getting a suburban. I'm looking at one with an 8.1 liter and one with a 6 liter. Was wondering if anybody here has either and what kind of mileage they get not towing.

I have a 2011 Suburban with the 5.3 and heavy duty towing and it pulls my PS200 very well. Granted its about 400lbs lighter than your boat.

Around town we average 14 mpg with the rolling terrain here. Took it on a 450 mile trip from Austin to Baton Rouge and it averaged 20 mpg (running 70-75 mph).

Towing the boat it averages 13 mpg in town and 16 on the hwy.

Jerseydave
02-22-2013, 06:20 PM
I am looking to go a newer boat also how did the 5.3 handle towing your X-star?

My '07 suburban 5.3 liter 3.73 gears handled the X-star fine on flat ground and small hills, never really tested it on steeper grades but I think it would be a struggle. Keep in mind I only had the 4-speed auto not the newer 6-speed. I think towing your 205 should be no problem at all. (I towed my Prostar 190 on a 20-hour trip and I was very pleased)

With that said, if you get a heavier boat in the future look into either the 6.0 or 6.2 that is available in the Yukon Denali/Escalade/Suburban LTZ. I had a Denali 6.2 and it was great.

I now have an F-150 Ecoboost that I cannot wait to hook to the Xstar. I want to see how it tows on steeper grades. I've heard good things.

If you're buying new, maybe check into a Ford Expedition Ecoboost.......I hear it's coming.

Kyle
02-22-2013, 06:26 PM
Here's the only pic I have right now....(dead boat battery) :rolleyes:

How in the heck is the boat floating in less than 6" of water with the running gear under the boat?

Forrest-X45
02-22-2013, 06:49 PM
With that said, if you get a heavier boat in the future look into either the 6.0 or 6.2 that is available in the Yukon Denali/Escalade/Suburban LTZ. I had a Denali 6.2 and it was great.


I agree with Dave. Look at the 2007 and newer Yukon XL Denali and Escalade ESV's. They are awesome.
I have owned and towed with 5.3, 6.0, and 6.2 in Suburbans, Silverados, and Yukon Denali. If you are looking for model year 2000-2006 then I would recommend the 3/4 ton Burb with the 8.1 over the 6.0 all day. You won't save at the pump for the lost performance towing and driving the 8.1. If you are looking newer, 2007 and on the best rig is the Yukon XL Denali or Cadillac Escalade ESV with 6.2. The 6.2 is excellent and comes with the heavier duty trans - 6L80E versus the 4L60 or 6L60 (in 2009) trans with the 5.3. The only way to get the 6.2 is in a Yukon Denali or Escalade.

Suburbans and Yukon XL's are the best for growing families. You just can't beat them for hauling kids, dogs, and gear plus towing your toys. That's why I just purchased another one a few weeks ago. Definitely went with the 6.2 again!!

Ski-me
02-22-2013, 07:02 PM
How in the heck is the boat floating in less than 6" of water with the running gear under the boat?

Girls are (suppose to be) holding it back so the rudder/propeller is not touching the ground......:rolleyes:

It does actually drop off pretty quickly in the next 6" - 12" from the girl standing there. Just a little deceiving.

We were, however, the only one on the lake so no waves whatsoever!!

This is what I was trying to hit if I could get the boat started. :cool: Oh, and we did ski it!!

palm418
02-22-2013, 07:09 PM
I have towed our X-star and X-2 with numerous times with my '11 Chevy 5.3 and '12 Ford Ecoboost. Both trucks got about 9-10 mpg but the ecoboost definitely has more torque.

bsloop
02-23-2013, 07:38 PM
Define growing. Are you in need of a 3rd row seat or just additional covered space?

Used to have a Suburban but we never used the 3rd seat.
Crew cab with a full topper has the same look and more function. Bed is clean and dry but if I have dirty or smelly cargo, passengers dont have to deal with it and cleanup is easy.
Plus even the short bed has more cargo space than a burb'. I wanted the long bed and have never regreted it!


http://i156.photobucket.com/albums/t12/triguy29/GMC%20truck/th_01172008Large.jpg (http://s156.beta.photobucket.com/user/triguy29/media/GMC%20truck/01172008Large.jpg.html)

1redTA
02-23-2013, 08:44 PM
My 08 Sierra with the 5.3 and 4l65e average 17 towing my little S & S from Clarksville TN to Mobile AL fully loaded down with the bed and cab full. Most have had a tail wind on the down hill drive. In 08 the 6l60 was available for the 5.3 too just didnt like the way it slid between gears and the thought of rebuilding a 6 speed over the venerable 4l60 variant

jeff shelton
02-23-2013, 09:57 PM
I've had several vehicles that had either the 5.3, 6.0, 6.2, 8.1 or the duramax and if you plan to tow a considerable distance I would recommend something with the 6.2 or the 8.1. I've towed a X45 with a 1/2 ton GMC crew cab pickup with the 5.3, while it will tow it, I would not recommend frequent towing with the half ton unless the distance is extremely short. I also towed the X45 with a tahoe with the 5.3 and I would rather tow with the pickup vs the tahoe.
I've towed a 197 with a 3/4 ton crew cab with 6.0, 8.1 and duramax and I will say that the 8.1 pulled the boat the best. The 3/4 ton with the 8.1 had 4.11 gears and the 3/4 ton with the duramax had 3.42 gears and even with the edge chip the diesel did not compare. You couldn't tell the boat was behind you with the 8.1 and 4.11 gears. The truck would only get about 12 miles to the gallon empty or 9 while towing. I was also not impressed with the mpg of the duramax (2005) regardless of the mode it was set to.
If you don't have to tow very far then the 5.3 would be fine and will get better mpg on an avg. The 6.0 would be a good medium duty but if you tow a long distance I would definately get the 8.1 or 6.2. I'm basing this on experience from towing trailers and boats from coast to coast. So, this is based on lots of interstate travel and in town commuting.

02ProstarSammyD
02-24-2013, 02:18 PM
I have a denali with the 6.0. I love it but its a gas drinker. Sure the 8.1 is worse. Depends on what you are towing though. I don't tow very far and think our longest trip was 4 hours with the boat (209). Handled it fine.........wallet did not. To be honest I'm not sure I would need more than the 6.0 but I hated towing with my buddies 5.3

zsqure
02-24-2013, 02:28 PM
I realize the gasser's (unless you get the 8.1), are weak compared to the Diesels offered by the Big Three. But, man you can buy a LOT of gas for what the diesel upgrade costs. Unless you are towing 6 days a week, that is a lot of cash to lay out to step up to the big leagues. Anyone heard if there are still oil consumption problems with the 5.3?

SoCal205
02-28-2013, 11:58 PM
Thanks for all the info. as soon as the minivan is gone I'll be in the market.

clrussell
03-01-2013, 07:09 AM
I realize the gasser's (unless you get the 8.1), are weak compared to the Diesels offered by the Big Three. But, man you can buy a LOT of gas for what the diesel upgrade costs. Unless you are towing 6 days a week, that is a lot of cash to lay out to step up to the big leagues. Anyone heard if there are still oil consumption problems with the 5.3?

I had a 2013 5.3 come in with 6000 miles on it that already had to have 1qt added to it at about 4500 miles. I don't know what's going on with the oil consumption on the 5.3, but it makes me almost not want one 07 and newer. Don't get me wrong I love gm and the 5.3, but they need to do something with it. I know of multiple 07+ 5.3s that use oil. I've got 3 that come in about every 25000 and need a new spark plug in #1 because its oil fouled. And I don't work at a gm dealership


Tapatalk

mah2496
03-02-2013, 02:03 PM
I had a 2013 5.3 come in with 6000 miles on it that already had to have 1qt added to it at about 4500 miles. I don't know what's going on with the oil consumption on the 5.3, but it makes me almost not want one 07 and newer. Don't get me wrong I love gm and the 5.3, but they need to do something with it. I know of multiple 07+ 5.3s that use oil. I've got 3 that come in about every 25000 and need a new spark plug in #1 because its oil fouled. And I don't work at a gm dealership


Tapatalk

I can attest to the 5.3L oil consumption. My 2007 new body style would use 1 to 2 quarts between changes at 5,000 intervals. Changed the oil at nearly 170k miles and it was 2.5 qts low. I traded it in the following week for a Tundra 5.7L and couldnt be happier.

XtwentyNot
03-02-2013, 03:38 PM
Gotta love a big block burb thread.
My buddy just traded his '07 5.3 with cylinder deactivation. It was burning 2qts. Every 3k and only had 100k on it. Chevy said it was normal and wouldn't fix it.
Big block burbs? Yes the 8.1 is a beast. Either '05 or '06 was the last year for it. They put a 4l85 Trans behind it. Then you get one ton running gear to go with it. It's a real truck and I highly recommend it, I may be biased :)
But I'm not so brand blind that I wouldn't look at a diesel ford excursion as well.
Happy hunting.