Oil Mystery ....

[flintknapper]

Tighten them until they snap and then back off a quarter turn is what I always heard...

I was more concerned he might check them with the engine running too. Probably not good for one's hands and fingers.

But enough sarcasm. Hopefully the OP got his answer.

 

[Tools R Us]

Maybe find a longer dipstick of the same type. Mark the engine off spots, adjust the oil level to a quart low, start it and make a mark, repeat with it full. Then you will have a stick properly calibrated to check it running,,, for whatever reason....

 

[studawg]

So who wants to check their oil with the engine running and see if it shows oil?

I will.....

This first pic shows a COLD engine, NOT running, hasn't been started in a week.....

Dipstick shows just above Full.....

RUNNING engine, just a few minutes after starting....

Basically shows NO oil, except for what I think is residual from the bottom of dipstick tube.....

Lastly, after it ran for a few minutes, I turned it off, let it sit for a few minutes, and it showed this.....

So WARM engine, NOT running.......

So I think this is to be expected.

I dont know where your rattle is coming from though.....

 

[mjosoba]

Check your alt belt tensioner, mine was my “rattle.” Removed it and never looked back.

 

[jonheld]

If you check it as @jonheld is suggesting, it should read ABOVE the full mark. How far above varies from rig to rig. If you know the difference in this, it doesn't matter checking cold or warm, but there is a difference

And my point is, that any difference between a cold engine and a warm engine is insignificant. Do you honestly think that a few ounces one way or another are going to have an effect on this engine?
If there's oil on the dipstick, move on. There are more important things to agonize over.

 

[Tools R Us]

... Do you honestly think that a few ounces one way or another are going to have an effect on this engine?
...

Worked on one, checked the stick, nothing, took over a gallon to bring it up to full. Drives fine, no harm, no foul, it was driven everyday until it was that low.

 

[80t0ylc]

And my point is, that any difference between a cold engine and a warm engine is insignificant. Do you honestly think that a few ounces one way or another are going to have an effect on this engine?
If there's oil on the dipstick, move on. There are more important things to agonize over.

Whatever floats your boat. I think OP is more worried about the noise than the oil level. My point was accurate oil level reading and reason for that is if you use a routine, be consistant. That's how you can accurately see if you're using oil significantly and how fast it's being used. Might come in handy if you're traveling on a long trip and you can only check it when your rig & the engine are stopped.

 

[gaoverlander]

My truck is sitting right in front of me in the shop so for S&Gs I did your procedure... At the full mark while off. Fired it up, pulled the dipstick, wiped it off, dipped it, and it came out bone dry. As a professional mechanic I've never heard of someone checking the oil while running and never tried it myself.

As others said, the dipstick only has access to a quart or so and it definitely has at least that circulating while running. I think your oil levels are totally normal.

If you're really worried about oil pressure check it with a mechanical gauge. Otherwise track down the rattle with a stethoscope or something.

FWIW I am running T6 5W40 with a Toyota small filter and it's been crazy hot here all summer. No rattles, good oil pressure. In fact just did close to 700 miles down to NC and back last weekend running 85 with the AC blasting and it did great.

Thanks. I didn't realize the difference on the stick from high to low was only 1 quart. I believe the rattle is either the timing chain slapping or predetonation from the timing being advanced .