Oil Pressure increase with new oil/filter!!!
#1
Member
Thread Starter
Join Date: Mar 2011
Location: Edison, NJ
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Oil Pressure increase with new oil/filter!!!
Ok,
Changed my oil last month to Castrol 10W-30, and put in a NAPA GOLD oil filter. Oil pressure under RPM is about 38-40 hot, and at hot idle is about 10psi. So today I drained the oil and put in Mobil 5000 10W-40 high millage with a K&N Hp-3001 filter ( this is the bigger filter). After driving for a while and getting the engine nice and hot, The oil pressure under steady driving was at 45-48, and at hot idle was at 18-20.
So was it the heavier oil or the bigger filter?
Changed my oil last month to Castrol 10W-30, and put in a NAPA GOLD oil filter. Oil pressure under RPM is about 38-40 hot, and at hot idle is about 10psi. So today I drained the oil and put in Mobil 5000 10W-40 high millage with a K&N Hp-3001 filter ( this is the bigger filter). After driving for a while and getting the engine nice and hot, The oil pressure under steady driving was at 45-48, and at hot idle was at 18-20.
So was it the heavier oil or the bigger filter?
#3
Herp Derp Jerp
Join Date: Nov 2011
Location: Parham, ON
Posts: 18,251
Likes: 0
Received 13 Likes
on
12 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Filter change like that wouldn't cause much difference in pressure... I'd be concerned if you bought an OCOD and went from 30 PSI to 60 PSI
The difference in pressure you're seeing is just due to oil weight. Totally normal. Though really your hot idle on xW30 is pretty low. Min spec is 13 PSI
The difference in pressure you're seeing is just due to oil weight. Totally normal. Though really your hot idle on xW30 is pretty low. Min spec is 13 PSI
#4
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,876
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Or you coulda whacked the oil sender while removing the oil filter.......
#5
CF Veteran
Join Date: Sep 2011
Location: Riviera, Texas
Posts: 4,172
Likes: 0
Received 4 Likes
on
4 Posts
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
Filter change like that wouldn't cause much difference in pressure... I'd be concerned if you bought an OCOD and went from 30 PSI to 60 PSI
The difference in pressure you're seeing is just due to oil weight. Totally normal. Though really your hot idle on xW30 is pretty low. Min spec is 13 PSI
The difference in pressure you're seeing is just due to oil weight. Totally normal. Though really your hot idle on xW30 is pretty low. Min spec is 13 PSI
Like said above a larger filter will not increase oil pressure! Th heaver oil will.
Thread
Thread Starter
Forum
Replies
Last Post
tristanp
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
09-15-2015 04:06 PM
Blackxj51
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
22
09-13-2015 06:06 PM
15XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
09-10-2015 11:17 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)