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Thread: burning oil

  1. #21
    Join Date
    May 2009
    Location
    Wichita Falls, TX
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    883
    do you guys run 5w30 like recommended or 10w30?
    2003 SIERRA- 5.3 DD
    1985 SWB C10- slow, future plans- shaved, painted, 6.0/4l80e

  2. #22
    Join Date
    Jan 2005
    Location
    Humble/Houston TX
    Posts
    2,586
    10-30

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  3. #23
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    Whats the benefit of running 10w-30 as opposed to 5w-30?
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  4. #24
    Join Date
    Jan 2009
    Location
    Round Rock, Texas
    Posts
    1,699
    10-30 is a thicker oil, better suited for hot temperatures. 5-30 is a thinner oil used in cooler temperatures.
    HowStuffWorks "Measuring Motor Oil Viscosity"
    cjriojas:if you're weather man is a 5 gallon bucket, YOUUUUUUUUUUU might be a redneck
    danger_ranger83: I see now why it cost so much to get a harness made... FML
    2boostedSilverado: I like Casey's rear end, I want to chat with him about it

  5. #25
    Join Date
    Mar 2009
    Location
    Tyler, TX
    Posts
    871
    i gotta say, my 4.8L has 117k miles and it doesn't burn a drop that i can tell
    and i check it every week religiously. the only problem i've had is one super noisy lifter
    [IMG]https://images.app.goo.gl/XLfskemekXBo5VfS7/IMG]
    www.tjc.edu

  6. #26
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    Well, I live in a rural town about 40 miles west of St. Louis, MO. Out temps at times range from below zero in the winter to low 100's in the summer. Change oil weight depending on season or just stick with 5w-30?
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  7. #27
    Join Date
    Jan 2009
    Location
    Round Rock, Texas
    Posts
    1,699
    10W-30 will cover you for all those temperatures.
    Photobucket | temperature Pictures, temperature Images, temperature Photos
    Might want to bump it up to 10W-40. This summer I'm probably going to switch to 10-40.
    Last edited by Duct_tape123; 04-04-2010 at 10:34 PM.
    cjriojas:if you're weather man is a 5 gallon bucket, YOUUUUUUUUUUU might be a redneck
    danger_ranger83: I see now why it cost so much to get a harness made... FML
    2boostedSilverado: I like Casey's rear end, I want to chat with him about it

  8. #28
    Join Date
    Mar 2010
    Location
    Paris, TX
    Posts
    511
    I have always used 5W-30 Mobil 1 in my 5.3. Got 153,000mi on it with only minor problems. Some of the new Toyotas I work on spec 0W-20 for the climate here in NE Texas.
    Alot of it has to do with the amount of bearing clearance and not just temperature. The less bearing clearance your engine has the thinner the oil must be to maintain the proper flow through the bearings for cooling and lubrication. The more bearing clearance your engine has the oil will have to be thicker in order to maintain the oil film that hydraulically protects the bearing surfaces from metal to metal contact under the pressure from the combustion process. To sum this little bit of knowledge up I would recommend running what ever was speced for your engine from the oem manufacture or the bearing manufacture on a rebuild.
    99' Silverado RCSB Z71: 5.7L Iron LS1, 11.2:1, Custom EPS Cam, Ported 862's,Ported TB, E-Bay Cold Air, E-Bay Long Tubes, Dynomax X-Pipe Exhaust, Electric Fans, Innovative LC-1, Self Built 4L60E, Circle D Pro Single Disc, 4:10 ValueTrac


    http://www.ls1truck.com/forums/image.php?type=sigpic&userid=7887&dateline=1270435  715

  9. #29
    Join Date
    Jan 2009
    Location
    Round Rock, Texas
    Posts
    1,699
    Good point, I didn't even think about the clearances.
    cjriojas:if you're weather man is a 5 gallon bucket, YOUUUUUUUUUUU might be a redneck
    danger_ranger83: I see now why it cost so much to get a harness made... FML
    2boostedSilverado: I like Casey's rear end, I want to chat with him about it

  10. #30
    Join Date
    Dec 2005
    Location
    Deer Creek, IL
    Posts
    173
    Quote Originally Posted by TXsilverado View Post
    you could try switching oils. when i went from mobil 1 to royal purple i noticed my motor drinks alot more rp than m1. went from 1 quart every 3k of mobil 1 to about a quart every 1k miles with the RP. these motors seem to gulp down the royal purple.
    I had the same thing in my Z28. Switched from Valvoline to RP and it drank well over a quart in 3000 "spirited" miles. I switched back right away, but it continued to use more oil than it had before I dumped the purple shit in my engine.
    New project truck:

    '00 ECSB 4wd, 5.3, 3" body lift, gap guards, 18x9 Moto Metal 951's, 305/60/18 Mickey Thompson MTZ's

    To-do list: Built rear end, 6.0 swap with built top end, 4L80e, and a couple bottles in the bed.

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