My Oil Change Interval Debate Rant

[Napalm]

You don't even want to know how the oil is maintained on a jet aircraft engine.

So to that end - again if it makes you feel better change it as often as you like use whatever you want.

Its like other things people grew up with as a child. you must floss your teeth or they will fall out. You must rinse off your dishes before putting them in the dishwasher. . . . . .


Eitherway FORD has done some research and so have some others and are telling you its OK to go a bit futher between events. Trust me when I say - it will be OK.

[UnleashedBeast]

Originally Posted by Napalm

You don't even want to know how the oil is maintained on a jet aircraft engine.

In the Navy fighter jets, it's tested every 20 hours, changed around 30-50 hours at most. IIRC.

[Kabigon]

I recommend this.

[DudleyF]

LOL. Is that pic real, or a Photoshop special?


I have no doubt it's tested at absurdly high intervals for a military jet aircraft, but comparing a Ford Focus (or any automobile for that matter) to a $150,000,000 fighter jet (F-22 unit cost) is like comparing apples to, well, automobiles.

[dyn085]

Originally Posted by DudleyF

LOL. Is that pic real, or a Photoshop special?


I have no doubt it's tested at absurdly high intervals for a military jet aircraft, but comparing a Ford Focus (or any automobile for that matter) to a $150,000,000 fighter jet (F-22 unit cost) is like comparing apples to, well, automobiles.

I'm sure the point is more about oil analysis than it is about comparing our cars to figjter jets... Aircraft I would waste a ton of money if oil changes were done on an arbitrary number established decades ago.
That being said, I need to find a way to mount rocket pods to deal with the @sshats that drive around here.

[UnleashedBeast]

I agree, when you are dealing with that much money and a pilots safety, you have to test everything often. They don't have the luxury to "pull over" on the side of the road during operation when something fails.

[TiStick]

Originally Posted by dyn085

That being said, I need to find a way to mount rocket pods to deal with the @sshats that drive around here.

Rockets FTMFW!!!

[Napalm]

LOL.

anyway - hyperbole notwithstanding. That's not a photoshop. Mobile Jet II is a real thing - its decent stuff too.

and well - you could just change the filters and top of the oil regularly - say around 3K miles.

that would do most of the job if not all. testing over the last 30 years in cars and in jets has proven some things about oil life and ability.

Its also driven changes to how lubrication is designed - that's the biggest part. Design parameters and theories have improved over the decades.

Oh and incase you didn't know. what was on an aircraft 20 years ago - is usually already on a car. and in a few cases - it works the other way.

(ABS, Drive by wire, Stability assistance, Ergonomics of position, etc.)

[empowah]

OCI finally went off at 10,250 miles, so I went for its first oil change last week.

According to TSB 12-5-5, the OCI would have never gone off (my car was built November 2011, which falls within that TSB), yet it eventually did.

And despite the (relatively) early build date, the dealer said there were no applicable TSBs for my car. Interesting...

[TboneZX3]

Originally Posted by UnleashedBeast

Pennzoil Ultra's NOACK for their 5W-20 grade is actually 12.6%, and is verified by their very own .pdf product sheet.

Ultra .pdf - scroll down

Pennzoil Platinum's NOACK for thier 5W-20 grade is higher @ 13.2%. They were sneaky hiding this .pdf sheet. It was not listed on their website, I had to internet ninja the link.

I see that you linked to the older SM API-rated Pennzoil Ultra, which is no longer on the shelf. Is Pennzoil lying about the 5% Noack on the SN API Ultra? Data sheet is here: http://www.epc.shell.com/Docs/GPCDOC...1207271342.pdf