ok...so I was driving the car ths past week and the oil presure would go up and down real erratic, so I got oil, and a filter and changed it (used 10w30) and it still does it. idle it has like 20 psi and if I increase the RPM's slow it climbs to about 40 psi. If I nail it it drops way down below 20 psi then climbs up slowly. oil is new, filter is new...and ideas???