Oil pressure

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65GMK

Member
Joined
Apr 15, 2021
Posts
30
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3
Location
Oklahoma
Ram Year
2010
Engine
5.7
2010 ram 1500 5.7 just completed mds delete, new cam and lifters after #3 cylinder intake lifter took out cam. Prior to parking vehicle for repairs oil pressure was reading 20 pounds lower than what was normal for the truck. Normal prior to failure was 52-55 pounds warm engine at highway cruise speeds, 65 or so when cold and driving. Since I was into the motor figured be a good time to replace oil pump as I ended up driving the truck more than I wanted to untill I had another means of transportation to fix mind. Went with the milling 10452 pump. High pressure not high volume. Thing hits 90 plus psi first starting off and after warm highway cruise speeds 65 to low 70 psi. Is this acceptable?
 

Fuel35 67

Senior Member
Military
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Aug 18, 2019
Posts
311
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Location
Hanford
Ram Year
2011
Engine
6.7 Cummins
To me, it’s a tad high. But if your not pushing seals out, you should be fine. Also a benefit will be getting more oil to cam/lifters.
 

mjmcg

Junior Member
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May 18, 2020
Posts
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Location
N.Y.
Ram Year
2011
Engine
hemi 5.7
I've had my 2011 1500 5.7 for about 4 years. Got it with 32K mi on it now at just under 80K.
I religiously monitor all my gauges constantly to the point of obsession. Oil pressure at full temp & highway speed (55-70mph) is always 50+/- 1 or 2.
this week I've noticed it's only at 40 or below. This didn't come on gradually, this was a one night it was "normal" and the next it was 40. All else seems to be running as normal. With a 190 T'stat I run around 188-194 coolant temp, 170-180 oil temp; 100-114 trans temp.
I run a superchips tune with the MDS disabled; clutch fan delete / electric fan replacement and full alum rad. Noting leaks, no codes, no light.
Any input what I might want to keep a look out for?
 

Silby

Member
Joined
Jul 10, 2021
Posts
39
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Location
Glendive, Montana
Ram Year
2014
Engine
5.7
I I've had my 2011 1500 5.7 for about 4 years. Got it with 32K mi on it now at just under 80K.
I religiously monitor all my gauges constantly to the point of obsession. Oil pressure at full temp & highway speed (55-70mph) is always 50+/- 1 or 2.
this week I've noticed it's only at 40 or below. This didn't come on gradually, this was a one night it was "normal" and the next it was 40. All else seems to be running as normal. With a 190 T'stat I run around 188-194 coolant temp, 170-180 oil temp; 100-114 trans temp.
I run a superchips tune with the MDS disabled; clutch fan delete / electric fan replacement and full alum rad. Noting leaks, no codes, no light.
Any input what I might want to keep a look out for?
 

Silby

Member
Joined
Jul 10, 2021
Posts
39
Reaction score
23
Location
Glendive, Montana
Ram Year
2014
Engine
5.7
I also would like to know why the oil pressure dropped. Any advice out there mopar maniacs?
 
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