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Thread: LMM owners, what is your oil pressure at?

  1. #1
    Join Date
    Oct 2003
    Location
    Houston, Tx.
    Posts
    5

    Default LMM owners, what is your oil pressure at?

    I used to have an '01 LB7 and the oil pressure was almost always at about 70-80 psi while driving. I've noticed that my '07 LMM is at about 65 cold, 40 driving at 2k rpm, and 25 at idle. These numbers are much lower than on the LB7. Are you guys at about the same pressures?
    2007.5 Silverado 2500 LMM LTZ C/C 4x4 Black

  2. #2
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,573

    Arrow

    Sounds normal, and healthy. The indicated oil pressure was reduced on later engine models.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
    Join Date
    Aug 2008
    Location
    Illinois
    Posts
    38

    Default Normal

    My 08 LMM runs the same pressures, have 18K miles and no issues

  4. #4
    NutNbutGMC Guest

    Default

    Quote Originally Posted by 1blubyu View Post
    I used to have an '01 LB7 and the oil pressure was almost always at about 70-80 psi while driving. I've noticed that my '07 LMM is at about 65 cold, 40 driving at 2k rpm, and 25 at idle. These numbers are much lower than on the LB7. Are you guys at about the same pressures?
    The 07 LBZ also runs at a lower pressure indicator reading than the LBZ. As stated, normal ops.

  5. #5
    Join Date
    Oct 2003
    Location
    Houston, Tx.
    Posts
    5

    Default

    Thanks guys.
    2007.5 Silverado 2500 LMM LTZ C/C 4x4 Black

  6. #6
    Join Date
    Mar 2000
    Location
    Geneva, IL
    Posts
    364

    Default

    Quote Originally Posted by DmaxMaverick View Post
    Sounds normal, and healthy. The indicated oil pressure was reduced on later engine models.
    Hi,

    My 2009 with about 11k miles on it runs a bit over 30 psi while towing my fifth wheel. This seems low to me considering the load.

    Anyone have a view on that?
    Rich Phillips
    Member #27
    2019 K-2500 Crew Cab Z71
    Cedar Creek Silverback 33RL Fifth Wheel
    In The Past: '82 6.2 Jimmy Blazer, '93 6.5 GMC K-2500, '01 DMAX K-2500, '09 DMAX K-2500

  7. #7
    Join Date
    Oct 2008
    Location
    Cheyenne WY
    Posts
    60

    Default

    That's the exact oil pressure I have on my 2009 Sierra, towing a 12K fifth wheel. That may appear to be low, however lower readings are a characteristic of later DMax engines.
    2009 GMC Sierra, 2500HD, Crew Cab, 4WD, D-MAX
    2009 Chevy Malibu LT, V6
    2005 Jayco 323RKS, 3600W Onan Generator

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