Just got a quick question here on something tha I have been observing. My oil pressure gauge will drop low when idleing but when I step into it it will go to around 275 where it should be. Do any other guys experiance this on there 3rd gens? I known my 2nds gen it is constant no matter what it is doing. just want to know if there is something I should be looking at here.

 

The factory gauge is fake ran by the computer and will read in the red if you drop below a specified pressure, 5 PSI, I think.

Their programming isn’t bad for it generally follows what my real oil pressure gauge shows. At idle it will drop quite a bit, down to 20-25, when the RPMs rise so does the pressure, I think what you are seeing is normal, for either a real gauge or the factory fake one.

I assume 275 was a typo and you meant 75, 275PSI would indicate an issue

 

On a real pressure gauge:
18-20psi hot, idle while towing.
45-60psi, depending on temp.

Tony

 

No. He meant 275 as in 275 Kilo Pascals. He's from Canada and the trucks are marked in metric.
275 kilo Pascals = 40 pounds per square inch

 

Thanks guys. I guess I have nothing to worry about. All is normal.

 

My oil pressure reading on the stock gauge fluctuates, when at idle it is about 12 o'clock (40) and at driving speeds it goes to 2-3 o'clock (60?).

I bought an oil pressure gauge so I can get an actual reading, the POS factory gauge is all but an idiot light, and it's response is a computer thing, not actual. If you had an oil pressure problem you'd be drained out before the gauge even hinted at a real problem taking place.


CD

 

Yup my 06 does the same thing, no problem.