when i press the gas my oil pressure gauge go up why?

 

Because you're forcing fluid through the system. As long as the needle isn't buried past 80 psi you're fine. It should fluctuate some.

 

Because the faster the Engine turns ... the more Oil the Oil Pump pumps. And, ... since the Oil Lines and Bearing Tolerances don't get larger ... it's harder for the Oil to get through those tight spaces ... so, there's increased Pressure.

And, ... as Martha Stewart would say: "That's a good thing!"

 

martha stewart thinkgs that a rise in oil pressure is a good thing? lol did she learn that in prison as well