losing oil pressure

[gtrguy]

I have a 96 Dodge ram pickup. With 128K miles

Today on the way to work, i noticed my oil
pressure guage all over the place.
Staying at 40 for a few minutes, then dropping down
for just a few seconds. Then back up to 40.

I recently did an oil change, but dont see how i could have caused
this problem in doing so.

Any suggestions on what it may be?

Thanks for any help, Brad

[BullShifter]

oil level low?
Maybe you knocked the pressure sensor while changing

[gtrguy]

Oil level is fine, no lost oil.

[BullShifter]

im guessing the sending unit is bad

[gtrguy]

i called my dad and he said the same thing,
hopefully this is it.

i appreciate the help!!!!
have a good weekend