My oil pressure gauge sometimes reads below 30, but when I drive it hard it will read at 30, I also check the oil it has plenty of it, I think it could be something electical, the car drives fine it does not overheat or anything.

 

Not sure on N/As but I think thats the right number for the oil pressure my TII is around 70-90 PSI

 

mine reads a little below 30 when idling and when normal city driving around 40-50...

80mph highway driving gets me close to 60psi

 

I drove my car today coming out of HCC, I was dring it at 4krpm, the oil pressure gauge was kind of stuck and it did not go up, but then later it was back to normal. I called Maztech, they told me that is probably the sendind unit, they also told me to install an aftermarket oil pressure gauge, the car got a new battery on friday, because my old battery was dead. I will put a new alternator soon, which autoparts have the best and cheapest ones.

 

Do the Mazda dealers sell the original Mazda sunrise red paint in cans?

 

around 15 psi is good for idleing you should see 60psi when driving hard and 30 when normal driving. if you ever see 0 then your in big trouble. what oil filter are you using? what weight oil are you using?

 

On the alt,you can upgrade it to an FD alt but they are pricey..
What alt you get make sure it has a warrenty.I gfet life time ones..

Oil sending unit is not hard to change,but I think the part is pricy

 

I use Purone Purolator Microfilter(blue one). For the oil I use Castrol GTX high milage 20 50

 

dont be wasting your money on the high mileage bullshit, it doesnt help our engines much. but the gtx 20 50 is good a choice along with the purolator. like everyone else said check your sender.

 

What about that Royal Purple oil? I keep hearing that is good but is synthetic, I know they don't sell them in stores, but do they have an Royal Purple oil that is not synthetic? Just wondering...