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Detroit S60 12.7 Oil pressure

Discussion in 'Freightliner Forum' started by SemiDriver76, Sep 20, 2025.

Sep 20, 2025 #1

SemiDriver76 Bobtail Member

19

9

Aug 23, 2013

0

Running 1500 rpm Speed 61mph oil pressure fluctuating between 40 to 52.
Idle 39 to 40. When started 60 psi and steady. No issues no codes. Just wondering if this fluctuation normal? Sensor replaced.
Thank You!

SemiDriver76, Sep 20, 2025

SemiDriver76, Sep 20, 2025

#1
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Sep 20, 2025 #2

Banker Road Train Member

4,246

12,899

Aug 19, 2012

0

Mine will start the morning off at around 50 and end up 42-45 when it warms up running the hills hard. It still has plenty of power and nearly 800,000 miles on it since the last inframe. This is fine for this motor.

Banker, Sep 20, 2025

Banker, Sep 20, 2025

#2

SemiDriver76 and blairandgretchen Thank this.
Sep 21, 2025 #3

blairandgretchen Road Train Member

13,557

73,602

Dec 9, 2011

South west Missouri

0

Mine is 70 on start up and 45 running - 700k on inframe.

blairandgretchen, Sep 21, 2025

blairandgretchen, Sep 21, 2025

#3

SemiDriver76 and Banker Thank this.
Oct 17, 2025 #4

sbaumann14 Road Train Member

1,226

1,421

Sep 1, 2010

Rhinelander, WI

0

Mine is 50-54 start. 30 weight runs 43-46. 40 weight runs 45-48

sbaumann14, Oct 17, 2025

sbaumann14, Oct 17, 2025

#4

SemiDriver76 Thanks this.

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