New Dipstick = More Oil Capacity

[HeavyAssault]

I'll admit to skimming but, how does a dip stick increase the oil capacity?

By not filling the pan to true capacity, a longer stick is needed to read "full".

With the "short stick" you must have more in the pan.

Hence the oil level is lower for us with a longer stick, where as the oil level is higher for those with short sticks (which seems to be quite a few people these days.).

 

[JTredway]

By not filling the pan to true capacity, a longer stick is needed to read "full".

With the "short stick" you must have more in the pan.

Hence the oil level is lower for us with a longer stick, where as the oil level is higher for those with short sticks (which seems to be quite a few people these days.).

wouldnt it be the other way around, the earlier trucks used a longer stick so it was farther down in the pan to read the oil and the shorter stick moved the measuring device up higher in the oil level for hte increased capacity? Or did the stick get longer and now has a wild range between min and full.

 

[HeavyAssault]

wouldnt it be the other way around, the earlier trucks used a longer stick so it was farther down in the pan to read the oil and the shorter stick moved the measuring device up higher in the oil level for hte increased capacity? Or did the stick get longer and now has a wild range between min and full.

 

[Kleetus92]

I'll admit to skimming but, how does a dip stick increase the oil capacity?

It doesn't. But where the problem came in is when you put the factory specified volume of 15 quarts in on an oil fill and it never shows up on the dipstick... people start asking questions! Hence the longer 24MY stick reaches further down to actually reach the oil... Otherwise to get it to show up, people are putting 16 quarts in.

Personally I'd love to put 16 in mine, it's 4 gallon jugs and you're done, you don't have to screw around guessing with the last quart that's now hanging around until the next oil change. If I had extra system capacity somewhere, like those ridiculous CAT filters that hold a gallon or whatever, that wouldn't be bad because you'd have the extra quart for volume, but the fill level would still look the same (assuming it holds a perfect quart)

 

[TremorKR]

@ZooDad i find it interesting your parts guy couldn't find any block differences. I was under the impression during the 2020 revision of the 6.7, the block was strengthened as well as the heads were stronger and a new casting. But this could have just been ford PR trying to sound good and amp up the news of the new steel piston upgrade.

Have long since always put 13 quarts in the pre 2020 and 15 in anything 2020 and over. Feel like an idiot now and don't know where I got the info thinking my 21 took 15 quarts again. Atleast this new update makes me think I wasn't hurting anything and not a total idiot.

 

[henry5six]

I'll admit to skimming but, how does a dip stick increase the oil capacity?

Well, it's not the stick, it's the tube length. What you're trying to achieve is to move the "fill Line or area" on the end of the dipstick. So, being that the tube has an upper and lower section (see OP), you'd want to increase the upper section length and this would shift the fill line and area up a bit. This would then cause you to add more oil to reach the fill spot. I'm not certain what the actual limit would be, but having an extra 1-2 quarts of oil in the 6.7 should be OK.

If I were to do this, I would rather get a larger capacity oil pan instead of messing with the dipstick.

Just be careful, over filling can lead to over pressuring inside the engine block and may blow out some seals. Most all of the quick oil change shops don't use the dipstick, they rely on the counter on their fill hose. Who knows when was the last time that counter was calibrated?

 

[shermanator2]

Consistent with ZooDad's excellent research, my 2022 truck has the 49-1/2" HC3Q-6750-AA.

My 2024 (late jan 2024 build) has the super short 48" PC3Q-6750-AB that ZooDad shows as a 2023 only. Apparently they used that one well into MY24. This explains why it takes well over 16 quarts to get to the top of the "safe" range.

It seems like I should replace both of them with the PC3Q-6750-AC parts and shoot for 15 quart oil changes.

 

[Explorerinil]

@ZooDad i find it interesting your parts guy couldn't find any block differences. I was under the impression during the 2020 revision of the 6.7, the block was strengthened as well as the heads were stronger and a new casting. But this could have just been ford PR trying to sound good and amp up the news of the new steel piston upgrade.

Have long since always put 13 quarts in the pre 2020 and 15 in anything 2020 and over. Feel like an idiot now and don't know where I got the info thinking my 21 took 15 quarts again. Atleast this new update makes me think I wasn't hurting anything and not a total idiot.

For 2023 ford added reinforcements and additional cooling for both the so and ho 6.7. For 2020-2022 the 6.7 received steel pistons, updated cp4, higher fuel pressure, different turbo, intake, cold air hose and I may be missing something. The blocks are all cgi.

 

[HeavyAssault]

Well, it's not the stick, it's the tube length.

17-22 Dipstick HC3Z-6750-C (HC3Q-6750-AA) (Re-Released) (49.5" Length - Tube shoulder to tip)

While I'm not counting....I'll take the extra I get.

 

[Phillbo]

By not filling the pan to true capacity, a longer stick is needed to read "full".

With the "short stick" you must have more in the pan.

Hence the oil level is lower for us with a longer stick, where as the oil level is higher for those with short sticks (which seems to be quite a few people these days.).

That's not increasing capacity, It's just requiring more oil to be in the pan. The pan still retains the same capacity (amount of oil it can hold).... Just for arguments sake

 

[HeavyAssault]

That's not increasing capacity, It's just requiring more oil to be in the pan. The pan still retains the same capacity (amount of oil it can hold).... Just for arguments sake

Which after I learned about the "real" pan capacity.....I'm happy with my dipstick length cause it's never been wrong.

 

[MrFancypants]

And to think we've always been brainwashed into believing the black ones are longer...

 

[Alpoba]

I am at peace with my short 23 dipstick. I learned to accept it and move on.

 

[P-T]

And to think we've always been brainwashed into believing the black ones are longer...

You just need enough to get past the previously used area

 

[AZsurveyor]

After reading this and having done my oil change this weekend, I dumped 4 gallons (16 quarts) of oil in my '22.

I will keep an eye on the pan to see if I observe any moisture or wetness from the pan seal due to "over filling"