10w-30 oil in 05 5.3

Discussion in 'Maintenance' started by mathalicka, Dec 24, 2016.

  1. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota
    i have ran mobile 1 high milage 5w-30 since i have got this pickup and lately it has been burning lots of oil (engine has 283k on it) I'm guessing the engine is just really worn out. but would running 10w30 make in not burn as much oil?
     
  2. Graystone

    Graystone Mmm Sandwich

    Age:
    34
    Posts:
    11,942
    Likes Received:
    1,615
    Joined:
    Jan 2, 2006
    Location:
    Big Bend, WI
    Did you check you pcv valve?
     
  3. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota
    how do i check it just take it off and make sure it aint plugged?
     
  4. John Clark

    John Clark GMFS Member

    Posts:
    221
    Likes Received:
    19
    Joined:
    Feb 1, 2011
    If it hasn't been replaced in the last few years just replace it.
     
  5. Copperhead

    Copperhead GMFS Member

    Posts:
    61
    Likes Received:
    4
    Joined:
    Jun 26, 2013
    Location:
    Central Iowa
    Yeah, cheap and easy to replace. Driver's side, rear top of valve cover. Agree fully, if it hasn't been changed out, just do it.
     
  6. 2005_Silverado

    2005_Silverado *

    Age:
    34
    Posts:
    5,165
    Likes Received:
    351
    Joined:
    Nov 3, 2007
    Location:
    SoCal
    05 wont have a pcv valve....wtf are u guys smoking? the valve cover is the "valve." The fix is to replace the valve cover....easy and cheap.

    10/30 wont stop the oil consumption once ur up to temp. Step up to 10/40 if you want a lil thicker oil.

    Hows the oil pressure with a fresh oil change?
     
  7. corey v

    corey v GMFS Member

    Posts:
    220
    Likes Received:
    3
    Joined:
    Aug 1, 2010
    Location:
    anahuac
    Mobil one sucks! Its on the thin side..I use rotella t6 5w40. Truck runs very smooth and runs great

    Sent from my LG-H830 using Tapatalk
     
    WilliamBos likes this.
  8. Graystone

    Graystone Mmm Sandwich

    Age:
    34
    Posts:
    11,942
    Likes Received:
    1,615
    Joined:
    Jan 2, 2006
    Location:
    Big Bend, WI
    It's still a pcv valve it just requires the whole valve cover to be replaced
     
  9. Copperhead

    Copperhead GMFS Member

    Posts:
    61
    Likes Received:
    4
    Joined:
    Jun 26, 2013
    Location:
    Central Iowa
    Yeah, a 40w would work. Many commercial fleets operating will put the same diesel oil they have in bulk for their large trucks into the gasser pickups they have and don't have any problem.

    A 5w30 and a 10w30 are the same thing. Just the 5w30 has a lower cold flow rating. But they are both 30w oils. You have to move up to a 40w to get a higher viscosity.
     
    WilliamBos likes this.
  10. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota
    sorry, haven't been on here in a while. i replaced my oil pressure sending unit with an AC Delco one a while back after my gauge pegged at 80... it been screwed up since. when i start up the pickup the gauge says my oil pressure is at 20 psi and when driving if the engine is still cold the oil pressure stays at 20 psi but once it warms up fully it will go to 40 psi. in the summer time when the pickup is fully warmed up the oil pressure is at 20 psi. on a side note, i have to add 1 quart of oil every 1000 miles. for an engine with 286k is that pretty bad? I am still using 5-30 mobile 1 high mileage.

    and that's with fresh oil i believe
     
  11. corey v

    corey v GMFS Member

    Posts:
    220
    Likes Received:
    3
    Joined:
    Aug 1, 2010
    Location:
    anahuac
    Stop using Mobil one and use a conventional oil

    Sent from my LG-H830 using Tapatalk
     
  12. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota
    dont like mobile 1?
     
  13. corey v

    corey v GMFS Member

    Posts:
    220
    Likes Received:
    3
    Joined:
    Aug 1, 2010
    Location:
    anahuac
    Nope! I used more oil when using Mobil! I like quaker state or castrol

    Sent from my LG-H830 using Tapatalk
     
  14. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota
    i will have to look into that... i just sick of my vehicle being a mosquito fogger:biggrin: (big puff of blue smoke when cold starting)
     
  15. corey v

    corey v GMFS Member

    Posts:
    220
    Likes Received:
    3
    Joined:
    Aug 1, 2010
    Location:
    anahuac
    15w40 is working good for me right now!

    Sent from my LG-H830 using Tapatalk
     
  16. BoltspeedMen

    BoltspeedMen GMFS Member

    Age:
    27
    Posts:
    932
    Likes Received:
    174
    Joined:
    May 21, 2010
    Location:
    Louisiana
    I always burned about 1-2 quarts before every oil change on 5-30w. I swapped the valve seals and it never burned a drop. That was at 220,xxx ish. I did it with heads still on the motor, and used the trick flow tool. I would highly recommend it even if your only doing the job once.

    I tried swapping oils, it still burned it no matter. But Castro did make it sound like a sewing machine.
     
  17. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota

    with 286k on the engine if anything i might just swap it with a junk yard 5.3 with lesser miles.
     
  18. Copperhead

    Copperhead GMFS Member

    Posts:
    61
    Likes Received:
    4
    Joined:
    Jun 26, 2013
    Location:
    Central Iowa
    It really doesn't have anything to do with M1. If you are putting a quart of oil in every 1000 miles, don't use the high ticket stuff. A good conventional will do the trick just fine.

    The 3.6L in my '06 Cadillac is still in great shape. GM calls for M1 5w30. It has gotten a Pennz 10w30 conventional for some time.
     
  19. mathalicka

    mathalicka GMFS Member

    Posts:
    46
    Likes Received:
    0
    Joined:
    Sep 25, 2014
    Location:
    minnesota
    i understand what your saying just wish the damn thing didn't burn so much oil
     
  20. BoltspeedMen

    BoltspeedMen GMFS Member

    Age:
    27
    Posts:
    932
    Likes Received:
    174
    Joined:
    May 21, 2010
    Location:
    Louisiana
    Well at 286k do some maintenance and fix the problem, or swap a motor. From my experience, oil gonna burn, it dosnt care how thick it is.
     

Share This Page