Oil Guage Issue

[AnthonyZ]

I recently purchase a 03 996 C2 6 speed with 20K miles. After only driving a few hundred miles i noticed the oil pressure guage wandering around slightly during normal highway speed. Is this normal? Thank you.

[wvicary]

The reading will change with RPM and temperature, is this what you are referring to? Any idea as to the weight of engine oil being used?

[AnthonyZ]

The reading will change with RPM and temperature, is this what you are referring to? Any idea as to the weight of engine oil being used?

0W-40 Mobil 1, the guage is only fluexating slightly but when im running steady at speed and at operating tempature.

[whall]

Anthony,

I have an MY02 C2 that has the same symptoms....generally with the oil pressure in the 3 to 4.5 bar range. The oil pressure transmittters have been known to fail. And, because the connectors (oil pressure gauge / oil pressure idiot light) on the oil pressure transmitter are not protected from the engine compartment elements, a poor connection could be the cause of the fluctuating oil pressure indication.

Because my oil pressure only fluctuates when the oil pressure is running in a certain range, I'm thinking my problem is in the oil pressure transmitter itself. MSRP at a dealer is about $50-55 and is supposed to be owner replaceable....if you have long skinny arms.

Bill