Sponsored

High Oil Pressure After Removing Oil Solenoid – Best Oil Filter?

Koryak

Active Member
First Name
John
Joined
May 26, 2024
Threads
0
Messages
38
Reaction score
27
Location
Colorado
Car(s)
2024 Z Performance MT, 2005 Mini Cooper S
Occupation
retired telecom instructor
Keep in mind that the purpose of the bypass is to prevent filter sludge from starving oil flow. Decent quality oil & reasonable change intervals produce almost no sludge, even in short trip cold engine driving.
 

Who.Am.Eye.2716

Well-Known Member
First Name
Phil
Joined
Feb 16, 2024
Threads
26
Messages
573
Reaction score
675
Location
WA State
Car(s)
Z
I don’t understand why a person would think an OEM filter couldn’t take whatever the pump can do. Kinda funny tampering with stuff like this and no clue what’s going on or will happen.
There are 2 groups of vehicle owners
  1. There are enthusiasts who push the engine beyond its limits, and has verified that using other filters will cause no harm
  2. Then there are other owners who follow by the book to make sure the warranty isnt denied
 

BigBlue

Well-Known Member
First Name
Jim
Joined
Dec 6, 2023
Threads
3
Messages
111
Reaction score
118
Location
USA Southeast
Car(s)
2024 Performance Trim. Everest white
Is the filter with the "E" designator a longer filter? I'm asking because that's the only reason I can think of that would allow more flow for the heavier weight oil.
 

trackratZ

Well-Known Member
First Name
August
Joined
Mar 23, 2021
Threads
95
Messages
2,837
Reaction score
5,365
Location
So CA
Car(s)
25 Z Perf 6MT, Cayman S (track), Tesla Model Y, Gladiator, MX5 Club (autox)
Occupation
Software security
Stock should be fine, or use the GTR filter if you're worried(they run ~ 80pis stock). You haven't increased the max oil pressure at all(~57 psi) so unless the stock filter was bypassing almost all the time on power you're fine.

The bypass valve in the filter operates of the pressure differential. Your higher oil pressure at low rpm/load shouldn't effect anything except gas mileage.
This is reasonable, stock Zs should be fine even with 5w30 in most situations. I will monitor when visiting the track next year, may go with the GTR filter if needed. If the engine is not pushed at constant high rpms, I wouldn't worry about modifying or removing the bypass valve.
 
OP
OP
TheSmileInTheSky
Joined
Mar 16, 2025
Threads
1
Messages
21
Reaction score
16
Location
Australia
Car(s)
Nissan Z
This is reasonable, stock Zs should be fine even with 5w30 in most situations. I will monitor when visiting the track next year, may go with the GTR filter if needed. If the engine is not pushed at constant high rpms, I wouldn't worry about modifying or removing the bypass valve.
I think the GTR filter is a the way to go especially if tuned and tracking. But that's just my 5 cents. I was very happy with the T&P’s after a heavy track session running a 5w40.

IMG_6241.webp
 

trackratZ

Well-Known Member
First Name
August
Joined
Mar 23, 2021
Threads
95
Messages
2,837
Reaction score
5,365
Location
So CA
Car(s)
25 Z Perf 6MT, Cayman S (track), Tesla Model Y, Gladiator, MX5 Club (autox)
Occupation
Software security
I think the GTR filter is a the way to go especially if tuned and tracking. But that's just my 5 cents. I was very happy with the T&P’s after a heavy track session running a 5w40.

IMG_6241.webp
Yep 5w40 is what I normally use out here in hot west coast tracks, extra insurance.
 

Thefunk

Well-Known Member
Joined
Apr 13, 2024
Threads
38
Messages
669
Reaction score
468
Location
Long Island
Car(s)
2024 Nissan Z Performance, 2018 Nissan Murano SV
Would running 0w30 cause any issues? I'm thinking about using that next oil change.
 

Who.Am.Eye.2716

Well-Known Member
First Name
Phil
Joined
Feb 16, 2024
Threads
26
Messages
573
Reaction score
675
Location
WA State
Car(s)
Z
Would running 0w30 cause any issues? I'm thinking about using that next oil change.
0w is going to be thinner on cold starts compared to 5w. 0w is for people who live in the North where it can see freezing temps.

Shouldnt be any issues running that oil viscosity
 

Thefunk

Well-Known Member
Joined
Apr 13, 2024
Threads
38
Messages
669
Reaction score
468
Location
Long Island
Car(s)
2024 Nissan Z Performance, 2018 Nissan Murano SV
0w is going to be thinner on cold starts compared to 5w. 0w is for people who live in the North where it can see freezing temps.

Shouldnt be any issues running that oil viscosity
What caveats would there be in running constant high oil pressure with the solenoid deleted?
 
OP
OP
TheSmileInTheSky
Joined
Mar 16, 2025
Threads
1
Messages
21
Reaction score
16
Location
Australia
Car(s)
Nissan Z
OP
OP
TheSmileInTheSky
Joined
Mar 16, 2025
Threads
1
Messages
21
Reaction score
16
Location
Australia
Car(s)
Nissan Z
Is deleting the solenoid easy for a novice DIYer or should I take it to a specialty shop?
Jack stands will do, just tight to get into. Hoist would be much easier. You will get a soft code that will need to be tuned out.
 
 






Top