2.7 Oil Change: Took 6 Quarts Not 7

[Funkdoobiest]

He got 6.75 out, that's not the problem.

I know. He’s got an oil producing truck.

It may have been mentioned but, between the low mark and the full mark on the dipstick is usually 1qt for American vehicles and 1L for non-American.

Also, the "low mark" should be thought of "the least amount of oil for all operating conditions" such as going up or down a steep hill.

Unless you've got an oil burner, running closer to the "low mark" is better than being at the full mark as all oil protects the best at operating temp. The less oil you have, the faster it will get to operating temp. How much would this really help in the long run for your engine, IDK but, it won't hurt.

I've always run all my vehicles just a quarter above the low mark and check the level every two months.

i don’t think any of that is good info. First, the more oil you have the better it doesn’t overheat. Yes the difference between high and low is 1 qt. As far as running low, I had a 2003 GMC envoy with 4.2l inline 6 which was a good engine. At the time I used to keep my oil level at the halfway mark on the dipstick which was a 1/2 quart shy of the vehicle specs. If my oil ran a little below half In the hills in West Pa my engine would run dry and start fluttering like it was out of oil. Ever since I try to keep my oil level as close to full as possible, which by the way is the level when you fill all cars to spec afaik.

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[NachoMama]

I know. He’s got an oil producing truck.

i don’t think any of that is good info. First, the more oil you have the better it doesn’t overheat. Yes the difference between high and low is 1 qt. As far as running low, I had a 2003 GMC envoy with 4.2l inline 6 which was a good engine. At the time I used to keep my oil level at the halfway mark on the dipstick which was a 1/2 quart shy of the vehicle specs. If my oil ran a little below half In the hills in West Pa my engine would run dry and start fluttering like it was out of oil. Ever since I try to keep my oil level as close to full as possible, which by the way is the level when you fill all cars to spec afaik.

Yep, I guess individual results may vary as they say but, I've never had any problems with six vehicles that I owned running just a quarter above the low mark and never observed any overheating or excessive temps. This might be because if there are higher temps. then the thermostat valve would open up more to circulate more coolant thus keeping temps. in check.

However, I can see having mare oil would result in the oil spending more time in the pan thus allowing heat to dissipate through the oil pan. How much of a difference IDK.

If anything, any extra heat in the oil would probably reduce the oils drain interval (or more so its viscosity over time) but, I've always changed my oil at the vehicles manufacturer's severe service recommended drain intervals which are much lower than the severe service drain interval recommended by the oil I use plus, I've done a few oil analysis test and all came back good even recommending to extend my drain interval.

 

[cowman]

oil does expand when it is hot. This increase in volume when heated is known as thermal expansion, and occurs because kinetic energy
is transferred to the molecules of the substances which causes the the
molecules to move more quickly and increase the spaces between
themselves.

You can see this when checking the oil levels in your car. If you do it when the engine has been running for a while and is warm, the oil levels will appear higher on the dipstick than if you check when the engine is cold. For this reason you should always check before the car has been used to get an accurate reading.

 

[Roll Sound]

oil does expand when it is hot. This increase in volume when heated is known as thermal expansion, and occurs because kinetic energy
is transferred to the molecules of the substances which causes the the
molecules to move more quickly and increase the spaces between
themselves.

You can see this when checking the oil levels in your car. If you do it when the engine has been running for a while and is warm, the oil levels will appear higher on the dipstick than if you check when the engine is cold. For this reason you should always check before the car has been used to get an accurate reading.

Yeah but if you do the math, it's still pretty negligible. It may not even show up ona dipstick, let alone be a quart.

 

[Lcubed]

do you suppose the 7 quart dipsticks are constrained and the 6 quart dipsticks used instead?

 

[Roll Sound]

do you suppose the 7 quart dipsticks are constrained and the 6 quart dipsticks used instead?

Is it possible it's the dipstick for the other engine? A production mistake?

 

[VelocityBrew]

You do realize that there is quite a bit of oil below the low mark? Like 70-80% of the pan is below that mark and above the full mark the tube gets REALLY small in volume? Thanks for clarifying that you don't entirely know how a dipstick works though.

 

[GrabberBlue]

Is it possible it's the dipstick for the other engine? A production mistake?

That's my worry at this point. Did I get a Frankenstein 2.7 from the factory (dipstick/oil pan issue) or is the Bronco 2.7 only a 6.0 quart engine like the rest of the 2.7s?

You do realize that there is quite a bit of oil below the low mark? Like 70-80% of the pan is below that mark and above the full mark the tube gets REALLY small in volume? Thanks for clarifying that you don't entirely know how a dipstick works though.

Did you even look at the picture? The oil level is half way up the dipstick. The oil marks are half a foot down from where the oil level is at. My dealer installed a replacement engine, failing to realize the revised engines do not come dry like the previous and filled it with oil bringing the oil level to 20 quarts.

 

[da_jokker]

These aren't 3 qt engines. 6-7 qts, we are talking about what 15%?

I would compare your dipstick to another 2.7 Bronco the first chance you get, But meanwhile I personally would go by the dipstick. If you are really concerned, split the difference for now.

And I've never changed my oil after warming it up. All that dirty oil has been dripping to the bottom of the engine all night, I'm not going to start the car and restir it all up.

There is alot of wiggle room and is not an exact science. Oil technologies have come our really long way and most likely far exceed and can overcome differences and dipstick measurements.

 

[NotApplicable]

Oil technologies have come our really long way and most likely far exceed and can overcome differences and dipstick measurements.

That's a pretty advanced oil technology if it can "overcome" significant overfilling. Can it shrink to take up 15% less volume with no impact to viscosity?

 

[da_jokker]

That's a pretty advanced oil technology if it can "overcome" significant overfilling. Can it shrink to take up 15% less volume with no impact to viscosity?

To clarify I was referring to filling to the top of the stick instead of to an owner's manual that we know for a fact is full of typos.

So you may or may not actually be one quart low and unless you're constantly drag racing it, since we know that's what the Bronco was designed to do, I wouldn't worry so much.

 

[GrabberBlue]

Just scheduled a service appointment for next week so they can drain and refill to validate my 2.7 is only taking 6.0 Quarts per the dipstick.

He called back to a tech and they verified that the Bronco 2.7 takes 7.0 quarts of oil per the service manual.

 

[NorthShoreBronco]

Hmmm, I work in a parts department and all the V6 EcoBoost engines take 6 quarts for an oil change. I'll check the shop manual when I get to work tomorrow.

 

[VelocityBrew]

That's my worry at this point. Did I get a Frankenstein 2.7 from the factory (dipstick/oil pan issue) or is the Bronco 2.7 only a 6.0 quart engine like the rest of the 2.7s?



Did you even look at the picture? The oil level is half way up the dipstick. The oil marks are half a foot down from where the oil level is at. My dealer installed a replacement engine, failing to realize the revised engines do not come dry like the previous and filled it with oil bringing the oil level to 20 quarts.

Again I don't think you realize how a dipstick tube works.

 

[GrabberBlue]

Hmmm, I work in a parts department and all the V6 EcoBoost engines take 6 quarts for an oil change. I'll check the shop manual when I get to work tomorrow.

Ford bumped up the Bronco 2.7 to 7.0 quarts. I have been trying to find any official commentary on it and this TBN article is all I can find.

It's troubling that they state, "Relatedly, Bronco’s 2.7L EcoBoost requires seven quarts of oil, up from the Ranger’s six, to protect parts while you do bold activities." Yet, the Ranger only comes in a 2.3 right now. Which adds further confusion to the fire.

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