No but you have to remove the intake to get to them. Why do you think you need new lifters.

 

Have you contacted GM service and asked what is normal oil pre. for the 6.2
thats where I would start.

 

If I get a chance to drive my H2, I'll see what it's shows tomorrow.

I've noticed it seems low (below the half way mark).
I just changed my oil 200 miles ago & I check it today. Still full.

 

Just wondering if used the Lucas oil additive with the most recent oil change. You stated in the previous oil change you used Lucas. If you didn't use it with the RP change I bet this is where you have lost a little oil pressure. As you know the stuff is like molasses and could bump up your oil pressure slightly. Especially from a cold start up. I use Lucas as well but only during summer months.

 

We don't you Pascals in the US (and we really should!). 1 PSI = 6894.76 (let's just say 6895 for simplicity's sake).

Here is the oil pressure while driving at least 45+ miles (about 72+ km) 80F (26.7C). I had a cool down period of 45 minutes after 30 miles of driving.


Here's the oil pressure at idle in the driveway after the entire trip:


I'm using full synthetic oil. The H2 has over 108k miles (173k km).

 

looks good to me.

 

That's exactly like mine.

 

This oil pressure sensor was the culprit for my low oil pressure. The ticking noise in the engine still persist.
I'll post some picturs of where the oil pressure needle is now

 

My 08's seems a little lower than usual although I can't remember for sure. I work overseas so am gone a good amount of time.

Mine looks to be a little lower than Synthetickiller's in the pics he showed. I'm basically sitting at the 20 psi mark at idle. I have never seen a low oil light show up I'm just a bit concerned.

How much was the oil pressure sensor and where is it located?