New Dipstick = More Oil Capacity

[ZooDad]

I posted this on FTE and forgot to post here on Ford Tremor

I have always thought why does my truck 2020, only take 13 quarts. If I lean the truck and let it drip for an hour I get more out and am at top line full with 14 quarts.
My son has a 16 so using Tasca Parts, ran the following trucks
2011, 2014, 2015, 2016, 2017, 2019, 2020, 2021, 2022, 2023, 2024.

Taking the variables out of lower pan size and dipstick tube length
11-24 Lower oil pan BC3Z-6695-B
11-15 Dipstick tube upper BC3Z-6754-C (Discontinued)
16-17 Dipstick tube upper BC3Z-6754-D
18-24 Dipstick tube upper H3CZ-6754-B
11-24 Dipstick tube Lower B3CZ-6754-A
11-16 Dipstick BC3Z-6750-C (HC3Q-6750-DA) (48.75" Length - Tube shoulder to tip)
17-22 Dipstick HC3Z-6750-C (HC3Q-6750-AA) (Re-Released) (49.5" Length - Tube shoulder to tip) (Thanks to @AppleFordParts for the confirmation
23 Dipstick PC3Z-6750-A (PC3Q-6750-AB) (Discontinued) (48" Length - Tube shoulder to tip)
23-24 Dipstick PC3Z-6750-A (PC3Q-6750-AC) (48.375" Length - Tube shoulder to tip)

The lower pan is the same for all years of 6.7
Tube is different from Upper tube has three variations, lower is the same for all years
The dipstick has FOUR different lengths.

I will be ordering a replacement for mine, and I can have the increase and still have it on the stick properly.

Thanks to @stroke250 , @Svenster , @KCRebel and @Jjdh for taking the time to help out with this.

ZooDad


Update: Feb 25, 2025
I got the opportunity to go by my local dealer parts.
I he confirmed my findings that there are no capacity differences in the 6.7 over the years. Ford has adjusted the oil dipstick length.

All years of 6.7 can have a capacity of 15 qts.

There is no difference in the windage tray or anything else. There is a newer upper oil pan for the MY24. It has a solenoid on it now.

The blocks have no notable differences.

ZooDad

 

[Lunch Box 🥩🍔]

Wow, that's a lot of info!! My 2021 takes 13qts, always has, always will!

 

[CADUCKHUNTER]

That’s very interesting that nothing has changed in the 6.7 or the oil plan but they adjust the oil level by changing the dipstick length. Why wouldn’t they want the most oil in all motors really doesn’t make sense. Seems to me if there is no negative effects then using a 23/24 dipstick in a 22 would be a good idea .

 

[Godzilla/Tremornator]

falls into stupid regulations & cost of operation fudging. less oil less cost less pollution

 

[avocadofarmer]

If there is that much free/safe play in the oil level just fill her up above the factory dipstick level and call it good. Or get out the wire clippers and shorten the long one.

 

[HeavyAssault]

All years of 6.7 can have a capacity of 15 qts.

Wow, that's a lot of info!! My 2021 takes 13qts, always has, always will!

@Lunch Box 🥩🍔 .....you can use 15qts now. It's okay....I know it's change. Sometimes change is good.

 

[HeavyAssault]

Taking the variables out of lower pan size and dipstick tube length

Since @Optimus🤖 is asleep at the wheel I'll step in.....

My dipstick has no problems with the lower pan size.

 

[Lunch Box 🥩🍔]

Since @Optimus🤖 is asleep at the wheel I'll step in.....

My dipstick has no problems with the lower pan size.

There are many dipsticks rolling over at the junk yard!!

 

[Modman]

If I lean the truck and let it drip for an hour I get more out and am at top line full with 14 quarts

Long drain periods like this will close the gap between what is called the "initial fill" and the "service fill". The service fill is meant to maintain the correct dynamic oil level with shorter, more typical, drain times. Some amount of oil will always be retained in the engine, however. Certainly if you "lean" the truck you can get some additional out as well.

Let's talk about dynamic oil levels a bit... The static level you measure with the dipstick really doesn't matter in and of itself - it's the oil level while the engine is running that is important. Too much or too little can be detrimental. Obviously there is a relationship and the static level is established to provide the correct dynamic level.

Checking sump part #s, etc is important but I would also be concerned with the oil pump map and oil consumers over the years that have most likely changed multiple times. Turbo, bearings, coolers, tensioners, hydraulic lash adjusters, etc - anything that has oil flow. How about other system impacts - vehicle usage, transmission and/or final drive gearing, etc that would change engine rpm and loading? My point is that within the same sump and bottom end of the engine, an equivalent dynamic level can be achieved with different initial static fill levels.

The OEM dipstick and oil level specification have been extensively tested and verified, both with engine dyno and vehicle level development and durability testing. Sure you can add more, but what provides any confidence that it's better? In some engines removing oil is safer than adding, when we're talking a magnitude of 1-2 quarts . I can't speak specifically to the latest gen 6.7, but the only reason I can see to add oil is if you are continually operating and biased to a high engine rpm condition. Even then it's somewhat questionable.

 

[HeavyAssault]

Long drain periods like this will close the gap between what is called the "initial fill" and the "service fill". The service fill is meant to maintain the correct dynamic oil level with shorter, more typical, drain times. Some amount of oil will always be retained in the engine, however. Certainly if you "lean" the truck you can get some additional out as well.

Let's talk about dynamic oil levels a bit... The static level you measure with the dipstick really doesn't matter in and of itself - it's the oil level while the engine is running that is important. Too much or too little can be detrimental. Obviously there is a relationship and the static level is established to provide to correct dynamic level.

Checking sump part #s, etc is important but I would also be concerned with the oil pump map and oil consumers over the years that have most likely changed multiple times. Turbo, bearings, coolers, tensioners, hydraulic lash adjusters, etc - anything that has oil flow. How about other system impacts - vehicle usage, transmission and/or final drive gearing, etc that would change engine rpm and loading? My point is that within the same sump and bottom end of the engine, an equivalent dynamic level can be achieved with different initial static fill levels.

The OEM dipstick and oil level specification have been extensively tested and verified, both with engine dyno and vehicle level development and durability testing. Sure you can add more, but what provides any confidence that it's better? In some engines removing oil is safer that adding, when we're talking a magnitude of 1-2 quarts . I can't speak specifically to the latest gen 6.7, but the only reason I can see to add oil is if you are continually operating and biased to a high engine rpm condition. Even then it's somewhat questionable.

I recall a little bit of this from the 6.0L motor years , it wasn't good at all for the oil to be "overfilled".

 

[gmbpilot757]

I’m wanting to swap out the stock plastic oil pan in my ‘24 for the PPE oil pan. Believe it states the oil capacity is 18 qts. In talking about it with my local diesel mechanic who I would have do the work, he stated “more oil is always better”. Any foreseen issues with increasing the oil capacity by 3 qts over stock?

I’m guessing doing this will make the oil dipstick issue a moot point…

 

[Modman]

I’m wanting to swap out the stock plastic oil pan in my ‘24 for the PPE oil pan. Believe it states the oil capacity is 18 qts. In talking about it with my local diesel mechanic who I would have do the work, he stated “more oil is always better”. Any foreseen issues with increasing the oil capacity by 3 qts over stock?

I’m guessing doing this will make the oil dipstick issue a moot point…

More oil is better if the volume (physical shape of the pan) is increased in the as well. To get the most benefit the pickup should also be moved deeper, accordingly. This doesn't impact the dynamic level of the oil. If the pickup doesn't move (I'm not familiar with the PPE product) it honestly probably isn't worth the trip... Taking it up a notch would be increasing the sump size, moving the pickup, and increasing the oil fill by something slightly less, thus moving the dynamic level lower. EX: adding 3qts to the sump, keeping the pickup at the bottom (moving it down) and only adding 2.5qts of additional oil.

 

[Modman]

FYI, when I reference the pickup I'm talking about this part. The end of the vertical section should follow the bottom of the sump/pan:

 

[StrokinOut]

I’m wanting to swap out the stock plastic oil pan in my ‘24 for the PPE oil pan. Believe it states the oil capacity is 18 qts. In talking about it with my local diesel mechanic who I would have do the work, he stated “more oil is always better”. Any foreseen issues with increasing the oil capacity by 3 qts over stock?

I’m guessing doing this will make the oil dipstick issue a moot point…

This is the first I've heard of Ford using a plastic oil pan on that gen. Are you talking the transmission pan maybe?

 

[JTredway]

Maybe I'm stupid or need more coffee... So the 21+ guys just need to swap to the newer shorter stick or do we need to change the dipstick tube. I'd love "more" oil capacity since I'm using Blackstone to track oil change interval. I'd love to see what changes might happen with soot loading and stuff averaged over the add'l quarts.

 

[gmbpilot757]

This is the first I've heard of Ford using a plastic oil pan on that gen. Are you talking the transmission pan maybe?

Apologies, I had two different things in my mind at the same time.

No plastic oil pan here. As far as I know that was earlier gens; ‘11-‘12. Stamped steel in mine but was still thinking of swapping it for the PPE for the cooling veins and additional ONE quart of oil capacity.

As for the transmission, that’s a different story. Yes, plastic pan that will most definitely be swapped out.

 

[JTredway]

I'm gonna pull out my stick and measure it against my future BIL this weekend while we're at the lake, he's got a 23. Just gonna pull it out and stick it in.

 

[thatdood]

I'm gonna pull out my stick and measure it against my future BIL this weekend while we're at the lake, he's got a 23. Just gonna pull it out and stick it in.

Not sure this fits the typical definition of Eskimo brothers…

 

[HeavyAssault]

while we're at the lake,

 

[Phillbo]

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