Oil pressure drops after 2000 miles +/- after oil change solved

[Teamiez]

If anyone uses PF46E oil filters and notices there oil pressures drop a bit after around 2,000 miles the problem is most likely the filter. I have been experiencing this & changing to a wix filter (I went with the XP) I haven’t noticed this problem again. Pretty sure there is also a TSB about this but figured I would share because it is a weird thing that happened with the last 3 Delco filters I used. So long GM filters! Can’t even make Those right anymore.

 

[Mudsport96]

I run the long ones, 61e i think

 

[OR VietVet]

My 05 gets the WIX 51522XP long filter and holds a steady 40 psi oil pressure at idle. I have been using WIX filters for at least 35 years with no problems.

 

[JonnyTahoe]

If anyone uses PF46E oil filters and notices there oil pressures drop a bit after around 2,000 miles the problem is most likely the filter. I have been experiencing this & changing to a wix filter (I went with the XP) I haven’t noticed this problem again. Pretty sure there is also a TSB about this but figured I would share because it is a weird thing that happened with the last 3 Delco filters I used. So long GM filters! Can’t even make Those right anymore.

Did you put over 2000 on the Wix yet ?

 

[Teamiez]

Did you put over 2000 on the Wix yet ?

yes approaching 3,000 miles

 

[Teamiez]

Did you put over 2000 on the Wix yet ?

i went with the 51042XP

My 05 gets the WIX 51522XP long filter and holds a steady 40 psi oil pressure at idle. I have been using WIX filters for at least 35 years with no problems.

i went with the 51042XP for the first try, used valvoline synthetic blend 5W30 since I got the truck at 97,000. Approaching 195K now

 

[smcnair]

My 05 gets the WIX 51522XP long filter and holds a steady 40 psi oil pressure at idle. I have been using WIX filters for at least 35 years with no problems.

Curious as to why you used a different filter than what is recommended for your truck? I'm intrigued if it would perform better.

 

[OR VietVet]

Longer filter holds more oil and filters more oil with the larger filter element. It will not prolong time between oil changes though.

 

[smcnair]

No fitment issues? Hanging down too low?

 

[OR VietVet]

Plenty of clearance on my 05 Z71 5.3L. It is only about 1" longer. There are a few threads here about this as well.