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| 06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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05-11-2007, 05:40 PM
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eBay Motors
#1 (permalink)
| | Member
Join Date: Apr 2007 Location: Union Grove, NC
Posts: 37
| Whats your oil pressure reading?
Hey Guys!
Motor has about 3000 miles and I know everything is still settlein into place,
but I was wonderin about the wide range in oil pressure Im gettin
Warm and below 2000 RPMs Im at 30 psi. above 2000 it jumps up to around 60.
Not worrin, no knocks, everthing is great, just curious
Eric
__________________ White 07 Classic 2500/(3500 BED): HD CC Longbed  LBZ, Alice in 6 wonderlands  ,
MBRP 4" SS Turbo Back  , Motto 954 17 x 8 wraped with BF 285s black walls of course  , Raptor Nurf Bars, B&W Turnaball | 
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05-11-2007, 08:43 PM
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eBay Motors
#2 (permalink)
| | Super Moderator
Join Date: Aug 2005 Location: Alaska
Posts: 1,607
| IIRC, mine is anywhere from 40-60 while driving down the road. Most of my driving keeps me under 2000 rpms on the highway. I think I am around 50-60 going down the highway. I run synthetic oil....Delvac 1 5w40 year round. At normal idle when warm, I think mine is about 25-30 psi. Of course, I have an LB7 too.
__________________ 2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7
4" turbo back MBRP exhaust
TST Powermax Programmer, Diablosport Predator
285/75-16 BFG T/A KOs, Eagle Alloys Series 187
Clifford 2 way remote start, High Idle, Bilsteins
Extang Classic Platinum Tonneau Cover
AFE Magnum Force Stage 2 Proguard 7 intake Kennedy Diesel Merchant Automotive My Photos | |
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05-11-2007, 11:24 PM
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eBay Motors
#3 (permalink)
| | Senior Member
Join Date: Feb 2007
Posts: 186
| before the oil cooler, i was at 20-25 psi at 2000 rpm when towing. Now it is 45-60 psi under the same conditions. Our oil gets HOT, and thin.
__________________ 04 LLY SRW SB
06 SRW SB EFILive all conditions no smoke 100 HP tune, exhaust, TD-EOC, alternative stock Cold Air Intake. | |
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05-12-2007, 09:39 PM
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eBay Motors
#4 (permalink)
| | Super Man Moderator
Join Date: Oct 2006 Location: Irwin PA
Posts: 2,699
| Ya I thought mine was unusually low to. Reads about 10-15 at idle and 50-65 when accelerating. I guess atleast its there when you need it!
__________________ Jason 2006 Silverado Shortbed Crew Cab LBZ Escalade handles, Line-x, Painted bumpers and towing mirrors, Tinted Front Windows & Tail lights 2 MTX 10in Subs & Punch 250amp in a custom box. Autometer Ultralite II Pyro & EGT gauges with pillar pod MBRP Turbo Back stainless exhaust (Straight piped), AFE Stage II Intake, PPE Hot+2 265/75/16 Nitto Terra Grapplers on Gear Alloy wheels Lost Kitty Reward if found!! 1999 Ford F-550 Powerstroke Tow Truck-Wrecker **Jerr-Dan Bed, S&B Intake  | 
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05-13-2007, 03:07 PM
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eBay Motors
#5 (permalink)
| | Senior Member
Join Date: Feb 2007
Posts: 186
| There are some reports that LBZ pistons are cracking. Oil pressure drop is speculated as the cause, leaving the underpiston oil flow shorted. Someone measured his oil temperature when climbing a hill with his trailer, it was 360 degrees. 
__________________ 04 LLY SRW SB
06 SRW SB EFILive all conditions no smoke 100 HP tune, exhaust, TD-EOC, alternative stock Cold Air Intake. | |
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