Oil Pressure

[quote:9450caec1c="bradh"]I have a 93 Jeep Wrangler with the 4L inline 6 engine with 137000 miles. Every time I reach 45mph my oil goes to 80 once I reach 50 it goes back to normal and if I drive at 40 my oil pressure is normal. It randomly fluctuates when I drive to between 20 and 80. What is my problem, what should I do?[/quote:9450caec1c]

Maybe a bad oil sending unit-but have to be confirm with oil pressure check and could also be the gauge

I own two 93 wrangler's with the 4.0L one manual and one automatic and they also have extremly high oil pressure it does not seem to be a problem though

[quote:6ccfccd788="gpwhat"]I own two 93 wrangler's with the 4.0L one manual and one automatic and they also have extremly high oil pressure it does not seem to be a problem though[/quote:6ccfccd788]

Could be the oil pump pressure relief valve