Track forum general chit chat.

[slcook54]

Probably already been debated several times in this thread, but, any concrete data on oil degradation for track cars? My street intervals were 5k. Im thinking 3k? My shop said some people do it every two days.

[turbo_joe]

Originally Posted by slcook54

Probably already been debated several times in this thread, but, any concrete data on oil degradation for track cars? My street intervals were 5k. Im thinking 3k? My shop said some people do it every two days.

I just change mine every few events, don't keep track of miles at all

[okusa]

Originally Posted by slcook54

Probably already been debated several times in this thread, but, any concrete data on oil degradation for track cars? My street intervals were 5k. Im thinking 3k? My shop said some people do it every two days.

Some people, but very few. I have measured mine after 2, 3, 4 and 5 days and this is absolutely no appreciable difference. So I started changing at 5. I have only ever used Castrol 10-60

[Grillpt]

Originally Posted by turbo_joe

I just change mine every few events, don't keep track of miles at all

Same as Joe here. At most 4 days (if I've had good days and ran all the sessions).

I've been using M1 15-50 plus a bottle of Lucas

[Ab28]

Originally Posted by slcook54

Probably already been debated several times in this thread, but, any concrete data on oil degradation for track cars? My street intervals were 5k. Im thinking 3k? My shop said some people do it every two days.

I go 3-4 events before a change....(depends as some events they'll run 4 sessions, others 6, sometimes open track all day)

Every two days seems like overkill, but I'm sure you'll find 100 opinions after you ask 100 people.

[Ximian]

Regular synthetic oil or "race oil" which shouldn't be kept long?

[Bimmer Barney]

Originally Posted by slcook54

Probably already been debated several times in this thread, but, any concrete data on oil degradation for track cars? My street intervals were 5k. Im thinking 3k? My shop said some people do it every two days.

I only do a couple track days a year. I do 5k intervals plus a fresh change before and after a track day. The oil is critical, and cheap compared to other parts. I'm probably overkill but makes me feel good.

[sc_tr0jan_m3]

With fcp's warranty I've upped the frequency of oil changes. It's just cheap insurance at the price point.

[leftfootbr8king]

Originally Posted by Bimmer Barney

I only do a couple track days a year. I do 5k intervals plus a fresh change before and after a track day. The oil is critical, and cheap compared to other parts. I'm probably overkill but makes me feel good.

Before AND after a track day?

[omgzirra_exe]

i jsut change my oil every 10k miles.

[okusa]

Originally Posted by leftfootbr8king

Before AND after a track day?

Must be a street car

[leftfootbr8king]

Originally Posted by okusa

Must be a street car

That's one way to make the consumables cost for a track day go even higher.

Not going to get away from eating up tires and pads, but now I'm curious. If changing oil before and after a track makes one feel good, why stop at engine oil?

Brake, diff, tranny, ps, and coolant might as well get swapped too, right?

Regarding air in the tires: that should be changed on this interval as well.

[leftfootbr8king]

Fwiw I'm on that FCP lifetime sponsorship deal so if I wanted to be wasteful I could dump all fluids before and after a track day at a very small cost, but instead I keep it to annual changes for everything but engine oil, which is swapped every 3-4 weekends (8 days) and brake fluid which gets a short bleed session before each weekend.

[Bimmer Barney]

Correct. I want brand new clean oil in my engine when I am constantly running at 5000-8600 rpm and then I want to get rid of that oil after that kind of use.

I change rotors, brake fluid, check PS fluid and change it if it doesn't look fresh. I would guess I change pads and tires earlier than most. I'm also the kind of guy that checks torque on all the suspension components before and after as part of my prep. If I had an overheating event with the diff or trans on my track day, I would likely change the fluid.

I do it partly because I enjoy the time, partly because I study risk professionally and so I can't help it, partly because I can afford it and so I'm not trying to find ways to make track days cheaper, partly because I've never had a mechanical failure and have seen lots of others have them, partly because I raced motorcycles where I'd argue machine prep is about 100X more critical.

That's just what I do. You do you. Don't be mad about it; I'm not!

[leftfootbr8king]

Originally Posted by Bimmer Barney

Correct. I want brand new clean oil in my engine when I am constantly running at 5000-8600 rpm and then I want to get rid of that oil after that kind of use.

I change rotors, brake fluid, check PS fluid and change it if it doesn't look fresh. I would guess I change pads and tires earlier than most. I'm also the kind of guy that checks torque on all the suspension components before and after as part of my prep. If I had an overheating event with the diff or trans on my track day, I would likely change the fluid.

I do it partly because I enjoy the time, partly because I study risk professionally and so I can't help it, partly because I can afford it and so I'm not trying to find ways to make track days cheaper, partly because I've never had a mechanical failure and have seen lots of others have them, partly because I raced motorcycles where I'd argue machine prep is about 100X more critical.

That's just what I do. You do you. Don't be mad about it; I'm not!

Where did you sense anger?

[Bimmer Barney]

You mad bro? 😂

[leftfootbr8king]

Durp

[P1zzaboy]

Originally Posted by slcook54

Probably already been debated several times in this thread, but, any concrete data on oil degradation for track cars? My street intervals were 5k. Im thinking 3k? My shop said some people do it every two days.

I did about 8-10 000km per year, which is mostly commute to the track, and track days, with only one oil change each year. Analysed every oil change with black stone, and it came out fine and they suggested longer intervals every time. Modern oils can keep properties for a long time.

[Cmassey3]

Signed up for the VIR full course in September and added on a Friday skidpad session. Hopefully that'll help with on and over the limit feel for me.

[slcook54]

Weighed her.

Full tank, DCT, single hump, cloth manual seats, 9660/9449 AP kit, BBS e88s, AG 60AH battery.

3,514. What I was expecting.

[spxxx]

Originally Posted by slcook54

Weighed her.

Full tank, DCT, single hump, cloth manual seats, 9660/9449 AP kit, BBS e88s, AG 60AH battery.

3,514. What I was expecting.

Damn these things really are pigs. I'm thinking that I'm around 3325# range with my interior gutting/race seats, exhaust & AG battery.

Crazy that my mostly full interior F80 was 3450 :

[911r]

Originally Posted by spxxx

Damn these things really are pigs. I'm thinking that I'm around 3525# range with my interior gutting/race seats, exhaust, & AG battery.

Crazy that my mostly full interior F80 was 3450 :

was your f80 dct?

berno's e92 is @ 3250 w/ rear bar … manual though