Supercharged and oil consumption? Is this normal....

[monte87]

Hi guys,
2021 mustang GT w 3,777 miles on odometer, had dealer installed Roush phase 2 blower at 1,681 miles.
Is oil consumption normal with supercharged cars? I had to add 1/2 quart at 1500 miles, and now another half quart at 3,742 miles.
Using 5w50 motorcraft full synthetic oil, btw.

Thanks, Anthony

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[Inthehighdesert]

That’s not unusual. I actually over fill my cars by 1/2 a quart and my trucks by a quart when I do oil changes.

 

[monte87]

That’s not unusual. I actually over fill my cars by 1/2 a quart and my trucks by a quart when I do oil changes.

Oh ok, wow these coyotes are oil burners,? Huh.
Thanks Anthony

 

[Goterr0r]

Some will say its normal. Ford will say some consumption is normal. My current 2018 GT with a Phase 2 and my previous 2018 GT didn't burn a drop between changes.

I would at least write down how much you add and the mileage to keep track of it. If it starts getting worse, then talk with your dealer and show them what you have been tracking. They will want to do a consumption test so you'll be able to see if your data matches their data.

 

[DuRsT]

Hi guys,
2021 mustang GT w 3,777 miles on odometer, had dealer installed Roush phase 2 blower at 1,681 miles.
Is oil consumption normal with supercharged cars? I had to add 1/2 quart at 1500 miles, and now another half quart at 3,742 miles.
Using 5w50 motorcraft full synthetic oil, btw.

Thanks, Anthony

My 2019 GT did not lose a drop of oil between changes.

My 2013 with 700hp / Roush setup did not lose any either.

 

[monte87]

Some will say its normal. Ford will say some consumption is normal. My current 2018 GT with a Phase 2 and my previous 2018 GT didn't burn a drop between changes.

I would at least write down how much you add and the mileage to keep track of it. If it starts getting worse, then talk with your dealer and show them what you have been tracking. They will want to do a consumption test so you'll be able to see if your data matches their data.

Thanks for reply. I am def documenting the mileage and amount of oil. I was quite shocked about this because I did proper break in, before blower install and babied it until I got passed the 1500 mile roush blower recommended break in for blower.
I also added the UPR dual catch can set up on the car, havent checked that yet...

 

[monte87]

My 2019 GT did not lose a drop of oil between changes.

My 2013 with 700hp / Roush setup did not lose any either.

Thanks for reply,
Anthony

 

[GreenS550]

I have had 5 supercharged Mustangs. 4 had Coyote engines. None of the supercharged cars used any oil between changes.

 

[GreenS550]

Never, ever overfill the engine beyond the oil line. Never. Perhaps a tiny amount would be OK. Better a quart low than a quart overfilled. Here is why: When the oil pan is over the recommended amount, the crankshaft can make contact with the oil in the pan. This causes several bad things as the crankshaft churning the oil up. This causes the oil to be impregnated with air as it foams. It causes a loss of HP as the crankshaft has to fight the mixing of oil. It causes a loss of gas mileage as more HP is required to spin the engine. Foaming oil has air in it. Your crankshaft requires pure oil to float the bearings in. Air may cause metal to metal contact.

This is the reason your engine has a WINDAGE tray inside it. To keep the oil separated from the crankshaft and all those connecting rods spinning in the slop.

 

[Red5.0]

16 mustang gt with roush blower. Doesn’t consume any oil between oil changes.

 

[Basspro302]

My 19 uses less oil with the whipple, I just keep an eye on it. I think the less gdi blend the less fuel dilution in the oil so less getting past the rings.

I would keep an eye on it and not stress about it.

 

[96gt4.6]

2017 MY/18k miles of being supercharged here.

1700 miles on Rocky Mountain Race Week alone this year. Car only sees the dragstrip, occasional out of town run and dragstrip at all other times.

I change the oil once a year, using 5W50 Motorcraft oil. It never comes off of the full mark between oil changes, and I am pretty dilligent about checking it before each race/test and tune.

 

[Andy13186]

All cars consume some oil people who think they consume 0 oil are just wrong or drive like grandmas for 99% of the time or just dont even actually check their oil often enough. My car consumed 1-2 qts per 3k miles NA, about the same or maybe slightly less now that I am whippled and using 5w50 oil. I add some every 1k miles. There is atleast a tablespoon in my catch can every 1k miles too.

 

[96gt4.6]

All cars consume some oil people who think they consume 0 oil are just wrong or drive like grandmas for 99% of the time or just dont even actually check their oil often enough.

*edit* I mis-read the above statement, you are correct on the lower consumption with spirited driving, I had skimmed and inverted the statement in my mind.

Actually, according to the service literature, it's the other way around:



Under warranty guidelines, 1qt/3k miles normal use, and 1qt/500 mi (Ford Performance Vehicles), is considered normal, per the OEM.

My personal '17, uses no noticeable oil with 24k miles on the ODO, and 18k miles of that has been with the Whipple. Car is pleasure use only, and really aside from Race Week in June, the only time it comes out is to go to test and tune nights and get ran round robin making passes.

No catch can either.

Ineed, all engine use oil, as some gets consumed while we move past and lubricate the parts they protect, sure. However, I have yet to see any real movement on this car. I service it once a year, and check it before every test and tune, so far stays right on full mark.

 

[Jackson1320]

Never, ever overfill the engine beyond the oil line. Never. Perhaps a tiny amount would be OK. Better a quart low than a quart overfilled. Here is why: When the oil pan is over the recommended amount, the crankshaft can make contact with the oil in the pan. This causes several bad things as the crankshaft churning the oil up. This causes the oil to be impregnated with air as it foams. It causes a loss of HP as the crankshaft has to fight the mixing of oil. It causes a loss of gas mileage as more HP is required to spin the engine. Foaming oil has air in it. Your crankshaft requires pure oil to float the bearings in. Air may cause metal to metal contact.

This is the reason your engine has a WINDAGE tray inside it. To keep the oil separated from the crankshaft and all those connecting rods spinning in the slop.

This is true but it takes more than a half a quart in the gen3 or even a whole quart in the gen1/2 for your Coyote crank to hit the oil

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