07-27-2010, 08:24 AM
Join Date: Jan 2009
Location: Columbus, OH
Total Cats: 177
People like you is the reason Mazda stopped putting real oil pressure gauges in our cars...
On a more serious note, as long as your oil pressure isn't zero at idle, you're fine. Also, as long as your OPG works similar to your tach, you're fine.
There are 3 possibilities for your oil pump:
- Your oil pump is getting oil
If this is the case, stop worrying. Your oil pump will flow a set VOLUME of oil for a given RPM. Your oil pressure may be lower, but oil is flowing just as fast.
- Your oil pump is getting oil sometimes
This is an extremely unlikely situation. If this is the case, you will see oil pressure drop under braking, and normal when accelerating/not braking. Also, if this is the case, you're a blundering idiot, and need to check your oil a little more often.
- Your oil pump is not getting oil
If this is the case, your oil pressure gauge will show "0" - there will be no question about whether your car is getting oil pressure or not. You'll know.
There is one other option, which doesn't involve the oil pump. A catastrophic failure such as a blown oil line may show a decent drop in oil pressure. If this happens, then:
- You have bigger problems
- Your oil level will quickly drop such that your oil pump will stop getting oil, and your OPG will soon be registering "0" anyways.