I changed my oil for the 2nd time today(used castrol gtx 10w40, 5 quarts like manual says, btw is that a good oil choice?) and after doing so I noticed the oil psi guage read around 60 and rose to around 90 when accelerating. Is this normal or did I put too much oil in the car.

 

Probably normal. We have a very active oil pressure gauge compared to most cars. It doesn't smooth out things like many cars do, so you see more movement.

 

i don't know if those numbers are normal i'd have to go look at my car, but i do know its perfectly normal for the oil gauge to spike up when accelerating. the manual even mentions that so people don't worry when they see it happening.

 

so it might be normal, well when you next drive could you take notice of oil psi at idle (mine is like 55psi) and what it goes to when accelerating. I drove my car hard it went to 90psi.

I would really appreciate it if someone could do this test

 

the correct wt. oil for the z is 5w30. using the 10w40 could void your warranty.

 

10w40 is fine just as long as it stays warm, that is what I read in the manual

but anyways, when accelerating does your oil psi guage go up 20-30 psi???

and what is your idle psi, mine is around 55-60???

please this is urgent, I did everything by the book and I not sure what is up

 

mine idles a bit under middle, and under accel it goes up to like 3/4s around. it does go rather high.

 

oh thanks soo much, so it is normal; i thought my engine was going to explode

 

I've been using Mobil 1 5w30 since 3000 miles, and during the winter my pressure would practically max out the guage when accelerating. Once things got warmed up it would stay a little lower, though.

It's normal (at least for me) for the pressure to rise as the RPMs increase.

-D'oh!

 

hell yeah, so it is suppose to happen

 

It is not reliant on acceleration. It builds as RPM rises. 3/4's or 90psi seems perfectly normal in my car. I still use 5w30 though.

Dan

 

my oil psi is higher when the enfine is cold, as i let the car warm up it gets lower

 

I use Mobile 1 5W30, and it will go almost all the way up to 120 when cold, if I go to high rpms (which I don't do, as a rule) but it will stay below 90 at all rpm ranges when the engine is hot. I generally use this to gauge how warm the engine is since our cars do not have an oil temp gauge. Once I can take it up to 6k without the pressure oging over 90, I consider it warm, and let er rip.

 

My gauge reads at ~20psi at idle when the oil is at operating temp. It goes up all the way to ~90 on hard acceleration, maybe even higher.

 

my oil gauge is around 45 at idle and can reach all the way to 120 when slamming on the accelerator.

 

interesting so he z's psi guage is suppose to rise up, on my parents jeep it only raises about 5 psi,

THANKS ALOT EVERYONE