I just changed all of my fluids (engine, trans, diff) a couple weeks ago and only put on 100 km since. I have a track day coming up on May 1st, and I'm wondering what all of you experts would recommend. I will probably only add a maximum of 200 km till then. So the question is, do you guys change fluids before, or after your track days? Also, what fluid change intervals would you recommend for the engine, trans and diff? i.e. engine oil for every track day, trans & diff every 3rd?

P.S. the current fluids in my car are as follows:
Engine - Amsoil 10W-30 100% syn
Trans - Honda MTF II
Diff - Amsoil Severe Gear 75W-110

Thanks in advance!

 

Change the brake fluid before the event. I like AP Super Blue and AP 200 (same stuff just yellow) For the rest it doesn't really matter, but do change them. I do the diff yearly with Mobile 1 (no LSD additive needed), trans every 2 years (standard Honda stuff), engine twice per year and run good synthetic 10W-40.

 

I change mine before the track day. I would consider <200km a fresh change. Some of us drive further than that just to get to the track. Enjoy!

 

Don't change too often. It's a waste of money and bad for environment. We do enough damage to environment as it is For those who said it is a cheap insurance, I say, you're just not being smart with your money. If it is not needed, it is not an insurance, rather a waste.

On my race car, I change oil once a year, or if we change engines. Same with transmission, and even brake fluid. We do use Castrol SRF. It is expensive, but doing it only once a year more than pay itself IMHO.

For my street car/weekend warrior, I follow owners manual, but sometimes I forget, so I change everything also once a year, with exception of engine oil twice a year.

 

SRF was a waste of money for me, I change the diff and trans maybe once or twice a year and the oil after a trackday.
I would change the oil before an event if it was dirty otherwise leave it

 

Sry if this is a stupid question:

Lets say you checked your engine oil before a track day and it doesn't look too bad so you dont change it. Then after the track day you check the color of your engine oil again and the color looks about the same. Would you leave it or change it just to be safe? (lets assume theres already been 1000 km on this oil)

This is a daily driven car and is running Redline motor oil 10w40.

I'm a complete noob when it comes to tracking but Redline isn't exactly cheap oil so i dont want to waste it. Thanks!

 

why do you change oil based on the way it looks?

if you daily drive, i would just change at the recommend mileage interval.

 

nono, i change my engine oil at regular intervals. But im assuming a track day would ware out the oil quicker. From the info im getting here, some people that track their cars dont change their engine oil right before or right after a track day but this is for a dedicated track car(i think). So would this still be the case for a DD car? Should i just stick to my regular intervals?

 

Sounds like you aren't tracking very often. Stop worrying about it haha! Just follow the intervals, check the level before, during, and after the event, and enjoy! (for engine oil)

 

Color isn't indicative of oil life.

Change normally, and get an oil analysis if you're feeling nervous.