VarTheVar

It's not wasteful. 0 mile oil works better than 5k mile oil. I've done oil analysis on my last 4 cars and the only one where the oil didn't break down early was non-turbocharged.

blackland

None of our cars ever get to the milage requirement for an oil change, just time. When the car is under warranty I get the oil changed even though the milage is probably 2K for the year just so they cannot try to void my warranty for not changing it. After the warranty I change it based on milage only. I feel like modern synthetic oil should last for 2 years in a low milage car. My Land Rover does not even have it's first scheduled oil change for two years.

Staffie Guy

What is 0 mile oil? You put new oil in and then take it all out and put more new oil in?

Triathlonkid

Interesting concept. I think he's saying fresh oil with no miles is somehow more efficient than oil that has gone through turbocharged engines which may lead to degradation. So his goal is to have as much fresh oil as possible aka change it frequently.
I don't know **** about cars but that makes sense to me.
Besides cost is there a downside of changing oils and filters too frequently?

VarTheVar

This is getting in the weeds but supposedly there are some oils from Amsoil that work BETTER as they age. I don't know if I misunderstood what I was reading but that's what it seemed to say. But generally no, it's just money, and fresh oil works better. Especially in modern turbocharged applications where the shear stability of the oil tends to degrade way faster. I remember on my old GTI 2.0 the shear stability of the oil was already outside of the minimum range (whatever that was) after 2500 miles. On my BRZ with 5 track days on the same Motul, Blackstone says the oil is only halfway through its useful life. The only way to know is to test.

garthg

garthg

Why would there be any degradation? The oil temperature is controlled with a thermostat and an electronically controlled oil pump. When warmed up, the oil temperature is a consistent 223 to 226 F. Well below breakdown temperature.
I think no 1,000 mile oil change is necessary. I just sold my VW after 20 years and 140,000 miles, VR6 (AXK model) equipped, an engine used in Porsches. Consistent 5,000 mile oil changes (10k was factory-recommended, same as Porsche), and the car was still using no appreciable oil at 140k miles. I never once needed to add oil between changes. Never had any significant engine problems.

Drew46

By that logic, you should change the oil after every trip. There is a point where the cost exceeds the benefit. One could easily argue that past that point is "wasteful".

VarTheVar

You can do your own testing on your vehicles and make a decision that you think is best

dudeoverthere

rennlist i love you, never change.

"break-in period is too long and conservative. i redline that b*tch out the dealer lot all the way home" stupid lawyers.
"oil change intervals are too far apart. i change my oil every 500 miles" stupid engineers.

Pag0307

please elaborate on sending oil samples for analyses. Looking for metal in oil or what?

Nein Eleven

Seems like the Blackstone/BITOG fanatics heard their siren song and had to come into the thread to proselytize. Rather than posting elemental oil analyses, I'd rather see them post the data showing premature engine failure due to not changing the oil at 0, 1000, 5000 miles, and then every 5000 miles afterward.

VarTheVar

let's all go gather that data for you

JayCrash450

Here’s the analysis from my first change. The car is a ‘23 992 gts changed just over 2,500miles. I will sample every change here on out, this history will be part of the car.

The primary reason for testing oil is because it helps identify wear metals and other things over time. It is not just one sample that might tell you everything about what is going on internally. The tracking various metals, elements, oil base stock, coolant, fuel, etc tells a lot about the health of the engine and how things are wearing. I also make habit of cutting open my filters. Oil analysis will also allow you to determine if the base stock oil is still good allowing for longer maintenance intervals or worn out.

Regarding oil change frequency thats something one has to settle for themselves. I’m happy with my routines for the various toys I have, ranging from dirt bikes to classic trucks, boats, etc. I’m likely anticipating I’ll change the oil on the 992 every 3,500-4,000 miles or so, no more than 5,000 for sure. Probably a bit excessive but it will make me feel better and THE best times I have in the garage is taking my time turning a wrench on the 911.

redcab

OP here... seems a lot of chatter since I last checked.

I'm actually a late "baby boomer" and I've been driving my 911(s) nearly every day since 2003. Not what some of you assumed.

As for my own oil change regimen, it'll get changed once a year for the rest of my ownership which will be just fine for the 5K miles or so (none track) it'll get annually. Was just wondering if the car was going to bark at me first.

FWIW, I bought the car CPO and no paper manual was provided so I'll pull up the electronic version when I'm stuck or confused. Otherwise I have all you brothers and sisters... which reminds me to wish the majority of you a HAPPY FATHER'S DAY!