idealy, id like to be doing it before and after every event, however i cant afford it.
im running redline, im changing mine just about every 2 events.
anyone have any thoughts on this? i know the track is so hard on our motors, but how often is really necessary.

 

Is the car used daily as well, or just track?

I changed my racecar's oil every few weekends, but other than track events, it sat on a trailer.

Any reason you're using RedLine? That stuff is pricey. I always stuck to fresh Castrol.

 

If I used redline I would definately not change it before and after each event. You might even be better off using that expensive stuff and changing it less often, than if you were using cheap stuff and changing a lot. At least thats what some people claim. I use castrol synthetic blend stuff because its cheap- and I still don't change it until at least 3k miles are on it. No matter how hard I drive it. How much you paying for your redline?

 

I run Mobil 1 and rarely run more than 2 track weekends on the same oil change. (Or 3000 miles, whichever is first).

 

my daily driver/track star gets 10x-30 castrol gtx before every event, and/or around 3,000 miles, whichever comes first. so guess what i'll be doing tomorrow night...

 

I change the engine oil and tranny oil after every track event. I run Castrol Syn.

 

With RedLine 10W30, I go 2 weekends. If the car sits for a long time, I will change the oil before the next weekend. I will also change the filter between weekends even if the oil stays in.

 

Eh, if you change it before every event you're not really going to need to change it afterwards. Every two events seems like a good guideline if you're not putting a bunch of miles on the car in between. From data I've collected on my car, my oil (Amsoil SA2000 0w30) isn't even really in need of changing after 2500 road miles and 2.5 hours on track, but I do it anyway.

Also, on changing filters often.

 

every 2 events with Redline 20-50 in the engine and Kendall 10-30 in the tranny. Of course my car often is being used in HPDE's by my brothers on the same weekend, so it gets about twice the normal track time a weekend.

Having kendall in the tranny helps me diagnose oil leaks, especially if the comes from the bell housing. Greenish means tranny and brown means engine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Littleton &raquo;</TD></TR><TR><TD CLASS="quote">I change the engine oil and tranny oil after every track event. I run Castrol Syn.</TD></TR></TABLE>
Same here - after every race weekend using Castrol Synthetic, Redline for the trans.

 

I run Redline in the engine and change the oil and filter after ~3 races with one being a 1.5 hr enduro.

This is on an ITC CRX.

 

Those of you changing every weekend - have you ever sent the oil off for analysis to see if it really needs changing? I swear there was a thread not to long ago that showed the oil was fine after a few weekends, but I could be remembering wrong.

 

Mobil 1, changed every other track weekend. I change the filter between weekends.

Redline in the tranny, changed once a year, whether it needs it or not.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Littleton &raquo;</TD></TR><TR><TD CLASS="quote">I change the engine oil after every track event. I run Castrol Syn.</TD></TR></TABLE>

same here

 

well it seems like the consensus thinks its ok to be changing ever couple events. my race car is also my daily driver but i put less than a hundred miles on it a week.

 

Averages:
~2165 miles/oil change (10W-30 Mobil 1)
~4042 miles/tranny fuid flush (Honda MTF)

After every track event or so (no more than two events on the same oil).

 

i'm on a 7000 mi interval, with DD mi are 1:1 and track day mi are valued at 10:1. so 700 track miles or 7000 regular miles or an amalgam of the two = oil change.

i'm running mobil 1 5w-30, but i'm probably making the switch to amsoil 5w-30 whenever i find a case for the right price.

for the castrol guys: oil guru's hate syntec partly because it's not a real syn and also because they lie about it being a real syn. i'd venture to say that they don't even use a group IV basestock in syntec--they just hydrocrack and treat the group III stuff...

you could accuse mobil 1 of the same thing, but they use a group IV basestock and mix in their additive package by dissolving it in a group III. there was a big court case where mobil took castrol to court for lying about the formulation of syntec, but mobil lost. now motor oils can claim to be synthetic when in reality they're not.

with that said, amsoil is a pure gIV/gV synthetic. as is redline, i believe.

 

2 weekends or 5 hours...

 

43 races on the motor, 37 of them on Castrol Syntec. Pulled it out as preventative maintenance still never smoked at all.

7 drivers eds on Mobil 1 in the street car, big assed fire ball display at LMS (oh and the bearings looked as bad as the ones we took out before switching off dino oil that had 40k miles and 20+ drivers eds on them).

My choice, call me a nut, sure I am probably confusing fact A for fact C and forgetting fact B but as far as I am concerned, cheap insurance. Also, 5 or 6 people have now told me to stay pretty damned far away from Mobil 1 on a race car. Personally, I will not put it in either car going forward. I am aware that the majority of the planet does not share this viewpoint however. Not telling anyone to use X or not use Y, people should use what they think is doing them right. In this case, I am making such a decision for myself, right, wrong or indifferent.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phat-S &raquo;</TD></TR><TR><TD CLASS="quote">43 races on the motor, 37 of them on Castrol Syntec. Pulled it out as preventative maintenance still never smoked at all.

7 drivers eds on Mobil 1 in the street car, big assed fire ball display at LMS (oh and the bearings looked as bad as the ones we took out before switching off dino oil that had 40k miles and 20+ drivers eds on them).

My choice, call me a nut, sure I am probably confusing fact A for fact C and forgetting fact B but as far as I am concerned, cheap insurance. Also, 5 or 6 people have now told me to stay pretty damned far away from Mobil 1 on a race car. Personally, I will not put it in either car going forward. I am aware that the majority of the planet does not share this viewpoint however. Not telling anyone to use X or not use Y, people should use what they think is doing them right. In this case, I am making such a decision for myself, right, wrong or indifferent.</TD></TR></TABLE>

i didnt really understand that at all

 

Sorry man, was replying to Bad Monkey regarding Syntec.

 

I change mine every 3 events or every 3 months, whichever comes first. It's primarily a track car, and I drive it 1-2 times/week to keep the parts massaged. I use a semi-synth oil called Schaeffer's.

 

Anyone have experience with Motul?

https://honda-tech.com/zerothread?id=666432

 

i'd like to hear from the guys doing the 12 and 25 hour races... i assume they are not changing oil during the race; just adding....

how do your engines look after a race like that? bearings, etc?

if they look good, i'd say most of y'all are changing oil too much!

that said, i change my oil after about every 5 or 6 days at the track. oil still looks light amber and clean when it comes out....

of course, i run a huge radiator with monster oil cooler; previous to the cooling upgrades i had to change every weekend, as the oil would look black as tar (was getting mega overheated) after 2 trackdays.

looking forward to some input from the enduro guys...

 

After the 12 hr with Littleton's car, there was &lt; 2% leakdown on all cylinders and the oil looked ok. Stock B16.

The car does have an oil cooler.