Does This Oil Pressure Look Ok?

[Mad Maxx]

I switched back to 15w-40 Amsoil Heavy Duty Diesel & Marine Oil, and this is what I got now. I was previously using Amsoil Series 3000 5w-30 for 2 Oil Cycles or about 7k Miles.

First Pic is at Idle and Second is 65mph with Cruise Set.

IMO, Idle looks pretty damn Low, but maybe not? I also have a feeling my Gauge Might be off on the Cluster, because when I Read the Oil Pressure with my Insight when I first put it in, the Insight Read ALOT Higher than what was shown on the Cluster Gauge. Any Idea's about that?

When the Engine is Cold though, I do get up to 90.

 

[CtChevy427]

James, The gauge readings there are very similar to mine. What did you Insight say at first?

 

[Mad Maxx]

I don't remember what it Read, but it was a good amount Higher when I compared them. Enough for me to sit there and kinda think WTF?

 

[Mad Maxx]

K, so I just went down and compared the Insight to the Cluster Gauge and it's pretty much Spot-On now.

But I know the other Day when I looked, it was a decent Gap between the 2.

But if that's about where yours is, then I guess it's all good, right?

 

[96 OILBURNER]

What was the oil pressure like with the 5w-30?

 

[CtChevy427]

I would say your fine as these are high volume oil pumps not high pressure. You might see a small drop during the summer as the engine runs hotter. I run the same oil year round Schaeffer's 9000 SAE 5W-40.

 

[Mad Maxx]

What was the oil pressure like with the 5w-30?

Around the same.

 

[btfarm]

James, that's within a few psi of what I've always seen (up to temp) with Rotella dino 15w40 on both the LLY and LBZ. I think you're good.

 

[Mad Maxx]

Ok good. I feel better now.

 

[Pepperidge]

I run 40 @ idle and 75psi @ 65 mph on up...


Mobil 1 5w40 fresh change 2 weeks ago...

 

[malibu795]

I run 40 @ idle and 75psi @ 65 mph on up...


Mobil 1 5w40 fresh change 2 weeks ago...

LB7/lly block run little hight then a LBZ block

i see abotu 35psi at idle when at temp.

and 70ish at 2000rpm

 

[saratoga]

Looks exactly like mine and I'm running plain ass jane 15-40 Delvac 1300. That and Delo are the only two I've ever run.

Just a hair under 30 at idle and just a hair below 60 cruising 65-70ish when at temp. Over 90 at cold startup.

Also keep in mind when driving, your perspective is slightly back and off to the left meaning that you aren't staring straight at the oil press, volts, fuel and coolant temp gauges making them appear slightly higher than say when you stick a camera straight on and snap a pic.

 

[Unit453]

The only time I've see mine right in the middle is right after I change it. I always thought mine ran pretty low as compared to my LLY. I can always tell though when its time to change it because my mileage starts to drop and the pressure gets lower and lower.

Same trip this week with new oil gave me 21.0 mpg @ 70. Last week I couldnt do any better than 19.1 at 65. Riddle me that one. I changed the oil and have been running B20.

 

[saratoga]

Where are you getting B20 from?
There isn't B-anything available around here, just straight #2 from Hess stations and a couple of Mobils. There's a mfr/wholesaler on Busch Blvd, but no one sells it retail that I'm aware of.

 

[Unit453]

Kennedy Space Center. Kennedy and Cape Canaveral use Ethanol and a B20 mix on all their Gov't vehicles. Its a Citgo station.

 

[Mad Maxx]

Its a Citgo station.

:mad2::nono:

 

[Unit453]

I know, I know.

 

[Pepperidge]

T
Same trip this week with new oil gave me 21.0 mpg @ 70. Last week I couldnt do any better than 19.1 at 65. Riddle me that one. I changed the oil and have been running B20.

were you running B20 before the oil change...

Bio is less efficient...you will get less MPG's with bio

 

[Unit453]

I have been off and on.

Here's my oil pressure at 66 mph.

 

[83GMCK2500]

I have been off and on.

Here's my oil pressure at 66 mph.

How do you get your truck to get that warm? The ONLY time mine has ever got that warm was when it was 100+ outside with a load of scrap iron on a trailer.