What’s happening here?

It's blowing my mind that I never thought of jet engines needing oil. If I think about it, of course they do! But I never saw anyone with an oil can and a funnel in-between flights.

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Depends on the motor. In 2 years on C-130Js I never serviced a single quart of engine oil. A B-52 will burn through several gallons in a normal flight across all 8 motors. Generally Id say a few quarts per flight is "normal" for a heavy.

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Breck_the_Panther@reddit

I was gonna say, those seem like small amounts for a 757. I used to put cans like that in Cessna Citations and Learjets

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fly-guy@reddit

I got the a330 and each engine usually gets around 1 quart after each flight. Sometimes a bit more, usually is than that..

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Freddan_81@reddit

As a trainee with SAS I once worked an A-check on an A330 (not one of ours but from an airline that leased us for A-checks) where the logbook showed that engine no:1 had consumed about 1 quart per flight and engine no:2 had used up about 4. It had been like this for a few weeks and we found it strange that no one seemed to have noticed or cared to investigate, despite the oil consumption being noted at every refill. Well, as we opened up the c-duct we found the missing oil! Charred to an almost glass like matter, caked on the inside of the cowls. As the trainee it fell on me to clean the mess. It wasn’t the best of nights.

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danit0ba94@reddit

Imo thats pretty good for a big engine like that.

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hotrodruby@reddit

To be fair.... You're talking about a 12 gallon system vs a 15 quart system

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fresh_like_Oprah@reddit

The difference is carbon seals vs labyrinth seals

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hotrodruby@reddit

Not really... The T56 has lab seals and the AE2100D3 has carbon seals. They're both 12 gallon systems and neither really required servicing. I have about 4 years experience on both engines.

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fresh_like_Oprah@reddit

On the 747 the difference on a long flight was a case of oil for the -200s versus maybe 4 qts for a -400. But now looking it up I find the JT9D-7R4 had carbon seals...so my theory is suspect.

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Beaver_Sauce@reddit

We had a one quart per flight hour per engine limit for TF-33's on E-3's. (same motors as B-52's). Anymore than that and the motor was pulled out to rebuild for excessive oil consumption.

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AlphaThree@reddit

Yeah, but you have to remember we had 8 engines and our sortie times ranged anywhere from 7 to 30 hours. It wasn't uncommon for one to come down after a 20 hour sortie and have multiple engines take over 10 cans. Something like a 5,7,12,9,2,15,2,7 would be a normal oil callout. Thats almost 15 gallons lol.

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Beaver_Sauce@reddit

Thats why I said per motor limit. Not a quart per hour for all 8 engines combined. I have many times put multiple gallons in just across 4 motors and well within oil consumption limits.

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JankeyMunter@reddit

Sounds like my old car.

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masapod2892@reddit

same as my bmw lol

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JankeyMunter@reddit

N55 engine by any chance?

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Tau_seti@reddit

I had that! Went electric afterwards. No more oil!

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ILikeFlyingMachines@reddit

Well you still have oil, it just lasts longer

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masapod2892@reddit

worse the tu of a certain black sheep

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av8geek@reddit

Engine

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showMeYourPitties10@reddit

Working a major at main hub, id say at least 1 of my 6.5 flights got oil. When I worked ramp, I would hardly notice the tech ops showing up to add oil.

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nic-sfr@reddit

Depends on the engine. On the 767, CF6s need a lot of oil, while I can probably count on one hand how often I had to service a PW4000 in 4 years of working them

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SoulOfTheDragon@reddit

Jet engines burn a bit of oil by design, so they are getting oil checks and refills as needed. It's all actively monitored and excess consumption can indicate engine wear, etc.

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Disastrous-Wall-6943@reddit

CF-6s usually go through about 1/4 quart per hour in flight, PW4000s a bit less. It's normal.

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danit0ba94@reddit

V2500s (seen on a32x classics) are probably the lowest oil consumption in their class. I'd say 1 in every 5-6 planes i service ever needs oil. And even then its usually 1 or 2 quarts at most.

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fly_awayyy@reddit

Their competitor the CFMs deff use more lol

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danit0ba94@reddit

Oh yeah. Pretty much any GE engine chews through oil. Whenever i deal with embraers, it was very rare that i *didn't* have to add anything. Lol

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Hamstorm@reddit

Oil usage is closely tracked. If an engine typically uses say 1 quart for a set number of flight hours, it's helpful to know if it starts using more oil. They are looking for trends, and if it starts trending badly, they can start planning for an engine swap. Most of the time when a plane shows up at our facility, we'll have to add a bit of oil, and document how much was used in each engine.

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fredly594632@reddit

I used to put stuff around the MLG (or at least we'll under the a/c) to keep the rampers from driving over it... Could be that.

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danit0ba94@reddit

Yeah that's fair. I could buy that.

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crag-u-feller@reddit

driving under the fuselage, as one does

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fly-guy@reddit

I think that might be the reason. Driving over them or knocking them over.

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aviation_guyMSFS24@reddit

engine oil idk why they are right by the wheels though

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SeniorFlyingMango@reddit

Paint for the wheels to make them shiny and to make sure they leave skid marks when they land

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epstienskiller1738@reddit

israeli art project?

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ExtensionFly4481@reddit

Blinker fluid

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fenuxjde@reddit

Refilling the chemtrail tanks

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_Hashtronaut_@reddit

Thats what I say when I eat lentils

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yoshipunk123456@reddit

This isn't r/shittyaskflying

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AbeFromanEast@reddit

It’s like they’re designed to leak.

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CynGuy@reddit

It’s how ya keep your customers coming back for more!

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Phrantic09@reddit

Jesus fuck don’t give them ideas.

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theoilcapistillthere@reddit

They are probably multi-tasking instead of going back and forth to grab stuff, my guess he has got to wipe the oleos of the landing gears.

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Neurojazz@reddit

Lids, pegs, spokes. 😆

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jjw14-1420@reddit

https://preview.redd.it/pdclio4i1l0h1.jpeg?width=1527&format=pjpg&auto=webp&s=fe5b4be08c62af669adc2b19fbcd38fea84a9bb2

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Financial-Bug8013@reddit (OP)

Good price

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fredly594632@reddit

I've always been a 2380 man, myself. Just tastes smoother going down. 😂

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BrewCityChaserV2@reddit

Looks to be some cans of turbine oil for the engines.

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Ok-Letterhead4601@reddit

The new beer cozies are working well.

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TweeksTurbos@reddit

Starts browsing etsy…

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fredly594632@reddit

Didn't find any yet, but I did find this - https://www.etsy.com/listing/836516355/have-i-mentioned-that-im-a-pilot-can ...so there's that.

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Revolutionary_Two747@reddit

Tires need an oil change

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agha0013@reddit

Cans of oil for the engines There was never a 757-400 though

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JasonIsFishing@reddit

Are you sure it’s not aircraft grade of this stuff? https://preview.redd.it/s0tmlzvc0m0h1.jpeg?width=1320&format=pjpg&auto=webp&s=9577f5dace798bf6ac3548bddd66232d63bc523f

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AgreeableGlass7925@reddit

Ha, good one. He only does boats

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dend7369@reddit

What’s she running? 10w-40?

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qzy123@reddit

Imagine how pencil-y it would be.

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TigerIll6480@reddit

That wouldn’t be a pencil, it would be the insert in a ballpoint pen.

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agha0013@reddit

all the pencil! something that would make the C-141 look chonky.

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Financial-Bug8013@reddit (OP)

767! Typo!

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series-hybrid@reddit

"...Eastman Turbo Oil 2197 is a premier 5 cSt High Thermal Stability (HTS) synthetic aviation turbine engine lubricant..."

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Murky_Bit4702@reddit

It’s what the new guy uses to collect air samples from the tires. Just to check off on the qual card

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nalc@reddit

Cana of black paint to go on the tires so they can make skid marks on the next landing

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MacGibber@reddit

I’m going to out in a limb here and say those are the chemicals added to the plane to generate chemtrails

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redaction_figure@reddit

My trainee went and found 3 gallons of prop wash so I told him to put those in a cool place and go find 100 yards of flightline.

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jtbis@reddit

Fun fact: jet engines don’t get oil changes like your car. They consume oil during normal operation, so it’s not all that rare to see it being topped off at the airport.

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