2.7 Oil Change: Took 6 Quarts Not 7

da_jokker

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So are we supposed to change the oil when the Bronco is totally cold? I was under the impression that it was best to run it a little then let it cool down for 10 or 15 minutes before change.
You have to decide. Warm oil flows better and the concept is that because it comes rushing out faster than it takes with it more of the impurity's.

Doing it cold means you've given the engine lots of time for all the oil to work its way back down to the oil pan so you'll get more of it, although it will flow slower.

For me personally, I've pretty much always done it cold. Go out in the garage in the morning and do my oil changes.
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da_jokker

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The foaming is caused by the crankshaft dipping into the oil pool. The dipstick max oil level is well below the crankshaft... also quality oil has anti foam agent in it.... a quart over will not cause foaming... if it really is a quart over full....look on the dip stick... see any foaming????.... I going to stick with what the manual says.....
Each to their own, not going to even try to tell you how to do your own oil changes.

Just wanted to make you aware, to date, Ford has not published a single piece of literature without significant errors in it. Just to be aware, the infamous owners manual is full of errors. If i recall correctly there's even an entire page that came from an F-150 manual that doesn't even match the Bronco.
 

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Each to their own, not going to even try to tell you how to do your own oil changes.

Just wanted to make you aware, to date, Ford has not published a single piece of literature without significant errors in it. Just to be aware, the infamous owners manual is full of errors. If i recall correctly there's even an entire page that came from an F-150 manual that doesn't even match the Bronco.
No need for you to make me aware of what Ford does or has done..... about oil changes and their books.... have been driving Fords since 1964.... have owned Ford models 1957 to date..... also know how engines work since I have worked on them all my working life.... learn from people who know... :)
 

broncorik

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No need for you to make me aware of what Ford does or has done..... about oil changes and their books.... have been driving Fords since 1964.... have owned Ford models 1957 to date..... also know how engines work since I have worked on them all my working life.... learn from people who know... :)
That would be fantastic if we all got awards for having worked on all kinds of engines for more decades than the next guy...but the 2.7 is unlike simpler engines. My point, which is apparently a point others may want to explore, is that something about many of our fellow 2.7 owners have indicated inaccurate sticks and taking only 6 quarts before full. Ford knows there is an issue with at least the first gen 2.7, as indicated here:

https://www.f150forum.com/f118/2-7-...can-someone-please-post-official-memo-361870/

They specifically state changing oil at operating temperature, removing oil filter first, waiting x number of minutes while draining, etc. etc. Based on the fact that the 2.7 is a relatively small engine, in terms of both physical dimensions and displacement, overfilling by a quart can potentially be an issue. We are not talking about a tractor engine from a simpler time or the flathead from the '32 or the 427 Chevy with a big pan and a little more overall wiggle room to overfill...we are talking about our 2.7 with the check valve and the weird oil setup that the engineers who designed the engine know far better than even us mechanics know it and who are very specific in their instructions as to making it a point to NOT overfill it. Why bother equipping an engine with a device intended to measure a level if that device is unable to accurately measure the actual level? I am stoked for the very few folks on this forum who dumped their oil per the instructions, got exactly 7 quarts out, and added 7 quarts and had their dipstick read at or even near the b level on the dipstick. If we take a poll, however, that is NOT what many of us who followed the instructions ended up with. Even the Ford shop foremen differ in their advice...mine said follow the stick measurements, another said to fill per the capacity specs. Others say "follow the manual" but have no further answer when it is pointed out that for some of us the manual contradicts itself.
 
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cowman

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That would be fantastic if we all got awards for having worked on all kinds of engines for more decades than the next guy...but the 2.7 is unlike simpler engines. My point, which is apparently a point others may want to explore, is that something about many of our fellow 2.7 owners have indicated inaccurate sticks and taking only 6 quarts before full. Ford knows there is an issue witu at least the first gen 2.7, as indicated here:

https://www.f150forum.com/f118/2-7-...can-someone-please-post-official-memo-361870/

They specifically state changing oil at operating temperature, removing oil filter first, waiting x number of minutes while draining, etc. etc. Based on the fact that the 2.7 is a relatively small engine, in terms of both physical dimensions and displacement, overfilling by a quart can potentially be an issue. We are not talking about a tractor engine from a simpler time or the flathead from the '32 or the 427 Chevy with a big pan and a little more overall wiggle room to overfill...we are talking about our 2.7 with the check valve and the weird oil setup that the engineers who designed the engine know far better than even us mechanics know it and who are very specific in their instructions as to making it a point to NOT overfill it. Why bother equipping an engine with a device intended to measure a level if that device is unable to accurately measure the actual level? I am stoked for the very few folks on this forum who dumped their oil per the instructions, got exactly 7 quarts out, and added 7 quarts and had their dipstick read at or even near the b level on the dipstick. If we take a poll, however, that is NOT what many of us who followed the instructions ended up with. Even the Ford shop foremen differ in their advice...mine said follow the stick measurements, another said to fill per the capacity specs. Others say "follow the manual" but have no further answer when it is pointed out that for some of us the manual contradicts itself.
Don’t really care… do what you want to… I’ll do what I want to… simple… :)
 

broncorik

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Don’t really care… do what you want to… I’ll do what I want to… simple… :)
I understand that...I am just hoping to get feedback from others who are experiencing similar concerns and ideally some kind of concrete answer that eventually clears things up. The reality of forums is that everyone has an opinion, right? Wishing all fellow Bronco owners malfunction-free 2.7s!
 

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I understand that...I am just hoping to get feedback from others who are experiencing similar concerns and ideally some kind of concrete answer that eventually clears things up. The reality of forums is that everyone has an opinion, right? Wishing all fellow Bronco owners malfunction-free 2.7s!
Don’t forget… the only time it has 7 quarts in the pan is when it is not running… good thing people can’t check the oil when it is running…. Or they would be adding oil all the time… :)
 

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My 2 cents, It makes sense to me to use the dipstick reading vs just adding 7 quarts. The dipstick is designed to show the level of where your oil is suppose to be.

Until Ford puts out a bulletin that there is a dipstick or oil pan problem, if your engine only takes 6 quarts to show full on the dipstick, you should assume there is a quart hung up in the engine somewhere.
 

broncorik

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My 2 cents, It makes sense to me to use the dipstick reading vs just adding 7 quarts. The dipstick is designed to show the level of where your oil is suppose to be.

Until Ford puts out a bulletin that there is a dipstick or oil pan problem, if your engine only takes 6 quarts to show full on the dipstick, you should assume there is a quart hung up in the engine somewhere.
Or that Ford used an oil pan off a Ranger or F150 while trying to keep up with early production...the Bronco is supposed to use a different part number (MB3E6675BE) but I couldn't find a stamping when I changed my oil to confirm. If a quart of oil is "hung up" in the engine, there are bigger issues.
 

broncorik

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Don’t forget… the only time it has 7 quarts in the pan is when it is not running… good thing people can’t check the oil when it is running…. Or they would be adding oil all the time… :)
Noted...but even after sitting all night, when I first took delivery, that 7 quarts in the pan showed 1/2 inch above the max mark on the dipstick. I was told the factory often overfills (told by a Ford shop foreman), even even after I did my first oil change per Ford's specific instructions (attached), even 6 quarts out the dipstick at max full. Point being, again, that the dipstick is inaccurate, OR that my 2.7 has the wrong pan. Either way, it should not take a rocket scientist to design an accurate dipstick.
Screenshot_20211102-201638_Acrobat for Samsung.jpg
 

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Noted...but even after sitting all night, when I first took delivery, that 7 quarts in the pan showed 1/2 inch above the max mark on the dipstick. I was told the factory often overfills (told by a Ford shop foreman), even even after I did my first oil change per Ford's specific instructions (attached), even 6 quarts out the dipstick at max full. Point being, again, that the dipstick is inaccurate, OR that my 2.7 has the wrong pan. Either way, it should not take a rocket scientist to design an accurate dipstick.
Screenshot_20211102-201638_Acrobat for Samsung.jpg
Ok... lets say the dip stick is wrong.... you going to do what the manual say.... 7 quarts or not... I'll cover my butt for warranty.... manual says 7.... I put in 7 and not what the dip stick says ... I'm covered by warranty.... and if the amount was that big of deal... Ford would say.... only let a Ford tec change oil...
 

Rover72

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Or that Ford used an oil pan off a Ranger or F150 while trying to keep up with early production...the Bronco is supposed to use a different part number (MB3E6675BE) but I couldn't find a stamping when I changed my oil to confirm. If a quart of oil is "hung up" in the engine, there are bigger issues.
I agree a quart should not be hung up / lingering. and after reading comments in this thread about nooks & passages etc... with this engine design, along with allowing time to drain, I am thinking it is possible for oil to be lingering (not hung up as in won't flow).

In the possible scenario / concern you mention above with the wrong pan, I would recommend simply going back to the dealer and having them put the vehicle up on the lift and verify the pan & dipstick with Ford.
 

broncorik

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I agree a quart should not be hung up / lingering. and after reading comments in this thread about nooks & passages etc... with this engine design, along with allowing time to drain, I am thinking it is possible for oil to be lingering (not hung up as in won't flow).

In the possible scenario / concern you mention above with the wrong pan, I would recommend simply going back to the dealer and having them put the vehicle up on the lift and verify the pan & dipstick with Ford.
I have the part number for the correct pan, and the part number for the dipstick I have...but the dealer won't be able to verify if the pan on my 2.7 is the correct pan unless they are able to get a part number someplace (and even though I am a mechanic, and would be doing the exact same thing they would be doing, I can't find an external part number). For that reason, I was hoping someone in this forum whose oil change at 7 quarts whose dipstick reads between the a and B on their dipstick (as it should) would kindly share their dipstick part number and ideally a picture of their oil pan. Currently, there are no pics associated with the part number anywhere on the web I can find...but the Bronco absolutely calls for a different part and engineering number than the other 2.7 pans. BTW, simply trusting just any mechanic at a dealership does not always go well...we have a 4runner with free 25000 mile oil changes and tire rotations...and thought "why not just have the dealer do it," and they not only stripped several of the skid plate bolts but also left a cover off (had to go back to have them return/install it) and they scratched up all 4 wheels by not using a coated socket. I will skip the freebies and do my own work.

As for adding 7 quarts without it matching the dipstick, how will those of us with inaccurate dipstick explain any potential issues (hopefully we won't ever have any) when the dealer asks why the stick reads so high (especially when the service manual/owners manual/etc. ALL indicate that if the oil level is above the max mark it needs to be taken to the dealer to have some oil removed?
 

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I believe the Bronco oil drain plug is on the side of the oil pan and the F150 is on the back from the videos I have watched.
 

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I believe the Bronco oil drain plug is on the side of the oil pan and the F150 is on the back from the videos I have watched.
I got a pic from the dealer of the Bronco pan assembly...and the correct PN for the dipstick...I will post shortly. The Ranger apparently doesn't option with a 2.7 for 2021. Is the F150 on the back only for 2WD or also for 4WD? Yet another Ford mechanic who checked my VIN said yes as the manual states it calls for 7 quarts...but he said his shop adds only 6.5 and that doing so typically puts it over the max line. He also said "they burn oil anyway so a little over the fill line will just get lower eventually" (not super confidence inspiring on a brand new car but OK). I just went with 6.5 for now and am hoping for the best.
 
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