Jump to content



Photo
- - - - -

6.2 L And Oil Consumption


  • Please log in to reply
16 replies to this topic

#1 danc55

danc55

    Enthusiast

  • Member
  • 28 posts
  • Location:Ontario, Canada

Posted 06 February 2010 - 01:04 PM

I'm going to place my truck order on Monday and am thinking about getting the max tow package to get the 6.2. Does the 6.2 have the same oil consumption issue some 5.3's are having? How much worse will the milage be? I can get the 6.2 without the tow package for some extra $$$ and avoid the 3.72 gears. Would that make a significant difference in milage?
I'm thinking a white slt with cashmere interior. Any thoughts on that combo?
Thanks

#2 RyanbabZ71

RyanbabZ71

    Administrator

  • Senior Moderator
  • 17,990 posts
  • Name:Ryan
  • Location:Avon, Indiana
  • Gender:Male
  • Drives:2010 Chevy Silverado Crewcab Z71 6.2L

Posted 06 February 2010 - 01:24 PM

If your buying the 6.2 why are you concern about milage?

Comparing my 2010 6.2 3.42 6 speed CC to my 2000 5.3 3.73 4 speed ext cab I get better milage with the 6.2. My last tank I got 14 mpg basically all back and forth to work. I never seen above 13 in my 2000.

Never had any oil consumption issues with my 2000 (85K Miles) or with my current 08 Tahoe (5.3 has 12K miles) or 6.2 (only has 1800 miles).

Edited by RyanbabZ71, 06 February 2010 - 01:26 PM.

Ryan

2010 Silverado Crewcab 4wd Z71 6.2L V-8 (L9H) Flex Fuel 6 Speed Transmission Sheer Silver Metallic
2012 Camaro 2SS Convertible 6.2L V-8 (L99) Ashen Gray Metallic
My Garage: http://www.gm-trucks...gallery&user=56
Camaro Mods http://www.camaro5.c...ad.php?t=257256

 

med_gallery_56_1830_72290.jpg


#3 Bish

Bish

    Senior Enthusiast

  • Member
  • 1,670 posts
  • Location:Chicagoland

Posted 06 February 2010 - 01:25 PM

Same here. Had zero oil consumption in 220K on my 01 5,3 and in 50K in my 08 6.2.
2008 Yukon Denali AWD Red Jewel
6.2L, 6L80E EFILive and a BlackBearPerformance tune. GMPP CAI, Hotchkis Front/Rear Sway Bars
2008 Buick Enclave - All GM for us now!

#4 danc55

danc55

    Enthusiast

  • Member
  • 28 posts
  • Location:Ontario, Canada

Posted 06 February 2010 - 01:45 PM

My 2007 Slt has a problem with oil consumption. Like many others on here I think it has something to do with the AFM. Aside from that I love the 5.3 and would never need more power. My concern lies in the fact that I will be buying this truck as GM doesn't lease anymore and I will try to keep it for a longer period than 3 years.(maybe up to 10 years). I do not want to end up with a motor that has these types of problems and that's why I was leaning toward the 6.2. Then I read the lifters may be causing the oil issue. If I may run into the same issues with a 6.2, I would stick with the 5.3.
Not really too worried about milage. I just don't want to be shocked. The heaviest thing I'll tow is an 18' boat. Just looking for some advice from the knowledgeable folks on this site.
Thanks

#5 Zembonez

Zembonez

    10 YEAR GMT MEMBER

  • Truck of the Year
  • 18,072 posts
  • Name:Jim
  • Location:Republic of Texas
  • Gender:Male
  • Drives:GMC Sierra

Posted 06 February 2010 - 02:05 PM

I've never had any oil consumption problems with any of my 5.3 trucks. I never even have to add oil between changes.

a3-15-20124-07-34PM_0043acopy_zpsd6a10ce

FOUNDER of the RED TRUCK CLUB .


#6 K20and2500HD

K20and2500HD

    Enthusiast

  • Member
  • 62 posts
  • Location:Central Illinois
  • Gender:Male

Posted 06 February 2010 - 02:19 PM

I had a 2004 5.3L, had it for 95K change the oil every 5000 miles with conventional Valvoline 10w30 and never had to add any oil, most of the time it looked like I just changed it. I would buy the 6.2L though for the power, forget the mileage. I went to a hd with the 6.0L and love the power and I forget about the mileage, you will tooooooo.

2009 RCLB 2500HD Z-71 6.0L LY6, Diablew tune, GM CAI, Recon smoked cab lights;
33x12.5 MT Baja MTZ, Jr. Motorsports rims, Stainless Steel rocker panels, DB Exhaust

2014 GMC CC All-Terrain 6.2L Iridium Meatallic, 2.5 RC Lift 295/55/20 Nitto Trail Grappler M/T

1984 K20 383 Stroker, TCI 400 turbo, 3 inch lift, procomp 33x12.5s
 


#7 VT_Z71

VT_Z71

    Enthusiast

  • Member
  • 357 posts
  • Location:Virginia

Posted 06 February 2010 - 03:09 PM

The oil consumption of certain 5.3s around here is certainly not a universal issue. I'm on my 3rd 5.3, and there are 3 others currently in the family (2 with AFM) and none have ever had any problems burning oil.
Posted Image

2007 GMC Sierra SLT Z71 ECRB: 4" Rancho Suspension Lift w/ RS9000XL adjustable shocks, Silverstar 9005 foglight mod, 6000k HID lowbeams, Corsa Sport side-exit exhaust, 35% Front Tint, GM Rear Fender Liners, 35" Toyo MT rubber on 18" All Terrains, 1.5" BORA rear spacers, Tuned by Blackbear, GMC Stainless Sill Plates, GM DVD Navigation, Rear Audio Controls, Cobra 75 w/ Wilson 5000

#8 NHT62

NHT62

    Enthusiast

  • Member
  • 12 posts
  • Location:Calgary, Alberta

Posted 06 February 2010 - 06:03 PM

I have a 2009 w/ 6.2L and NHT tow package, and oil consumption has been a non-issue.
2009 Silverado 1500 LTZ CC 4x4, 6.2L, A6, NHT, integrated trailer brake, 3.73, Greystone Metallic.
Mods: Volant air box, American Racing Headers, Corsa Touring catback, Volant resonator, GM billet grill, Extang Solid Fold tonneau cover

#9 68haywagon

68haywagon

    Enthusiast

  • Member
  • 204 posts
  • Location:PA
  • Gender:Male

Posted 06 February 2010 - 06:29 PM

The oil consumption of certain 5.3s around here is certainly not a universal issue. I'm on my 3rd 5.3, and there are 3 others currently in the family (2 with AFM) and none have ever had any problems burning oil.


I agree. My 09 5.3 has about 12k on it and at the last oil change it used less then .5qt in 5000mi. That is right in line with my 07 with the 4.8 w/o afm.

I would love to see the real percentage on how many have an afm oil issue. I would bet it is quite low.

Mike

2012 Silverado ECSB LT - 5.3l - Blue Granite Metallic

2012 Chevy Cruze LS - 1.8l - Silver
1993 C1500 RCLB W/T - 4.3l - Indigo Blue Metallic
1992 Chevy S-10 - 2.8l - Black/Silver two-tone


#10 QUIKAG

QUIKAG

    Enthusiast

  • Member
  • 307 posts
  • Location:DFW, TX

Posted 06 February 2010 - 07:38 PM

26k miles on my '08 6.2 with zero oil consumption. I go the full distance on the oil life meter and just run mobil 1 5W/30 synthetic for an extra measure of protection.
'08 Yukon Denali
'10 ZR1

#11 VT_Z71

VT_Z71

    Enthusiast

  • Member
  • 357 posts
  • Location:Virginia

Posted 07 February 2010 - 01:15 AM

AKA.....the same with the oil, the same with the AFM, the same with the ticking lifters, etc. The ones you always hear about are the few that have issues. You never hear about the 99.99% that have no issue at all.

Its the same probablilitiy that you would have with ANY new vehicle. More than likely you'll not get a lemon. But then again, there is always the chance. If it happens, that sucks, but its just luck of the draw. It occurs with all makes/models of vehicles.

If you are unluckly enought to have it happen, then its just a matter of how good your dealer/manufacturer takes care of you after that.
Posted Image

2007 GMC Sierra SLT Z71 ECRB: 4" Rancho Suspension Lift w/ RS9000XL adjustable shocks, Silverstar 9005 foglight mod, 6000k HID lowbeams, Corsa Sport side-exit exhaust, 35% Front Tint, GM Rear Fender Liners, 35" Toyo MT rubber on 18" All Terrains, 1.5" BORA rear spacers, Tuned by Blackbear, GMC Stainless Sill Plates, GM DVD Navigation, Rear Audio Controls, Cobra 75 w/ Wilson 5000

#12 music

music

    Senior Enthusiast

  • Member
  • 2,509 posts
  • Name:Robert
  • Location:TN
  • Gender:Male
  • Drives:08 Sierra 4wd Crew

Posted 07 February 2010 - 10:35 AM

Oil consumption is (unfortunately) a hit/miss issue. There appears to have been a batch of 5.3's that may have had a too aggressive lifter, but GM is replacing those under warranty. New trucks won't have that issue. Mine has zero oil consumption, as do most. Other than that, we always run a slight risk of getting an oil burner when buying a new vehicle, depending on how well the pistons/rings/cylinders mate up... but that's independent of displacement. I feel very good about the 5.3, but I'm sure the 6.2 will hold up well too. I'm certain that an aluminum block 5.3 is going to get better overall econonomy than the 6.2, but if you need/want the power (towing, etc.) then it's probably a "justifiable" expense.

Edited by music, 07 February 2010 - 10:38 AM.

DSC03060.JPG

2008 GMC Sierra CC Z71 4wd


#13 07BlueSierra

07BlueSierra

    Enthusiast

  • Member
  • 207 posts

Posted 07 February 2010 - 02:28 PM

I have 78k on my 2007 NNBS 5.3 and have had no issues with oil consumption.

#14 ken1mod

ken1mod

    Senior Enthusiast

  • Member
  • 1,150 posts
  • Location:Northern Arizona

Posted 07 February 2010 - 02:34 PM

Sir,

The 6.2 has the same oil burning characteristics as the 5.3. It will almost certainly burn no oil. The 5.3 and its siblings are excellent engines.

Remember, this site will concentrate any issues, as it must do. Do not worry about any Chevy engines. They are among the best on the planet.

Ken

#15 autobob01

autobob01

    Enthusiast

  • Member
  • 33 posts

Posted 07 February 2010 - 02:56 PM

Had a 2005 5.3 Silverado with no oil burning issues. Loved the truck but it was lemon lawed with an incurable steering noise (24 trips to dealer in 6 months) so I bought an 07 Avalanche LTZ with the 5.3 AFM. After 7000 miles started with the check oil level light. Losing a quart every 1500-1800 miles. Dealer was very good about it, tried lots of things, last thing from GM was to replace all pistons and rings, and heads. No, they wouldn't replace the entire engine. Traded it in on a new 6.2 Silverado LTZ and couldn't be happier. 8k miles so far and hasn't missed a beat, plus the 4 MPG city of the 6.2 over the 5.3 in the Avy made it all worth not to mention the extra ponies. ;-)




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users