evowrx

Racing fluids quiz

17 posts in this topic

Keen to know what fluids you track guys are using and why. Anything from club cars to one trackday per year thro to GTRNZ.

 

Engine, gearbox, diff oil and brake fluid. 

 

Cheers lads.

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timely topic, about to change my fluids too . following :)

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Motul PA90 and Gear 300, the TRD version of RBF600 (because it's cheaper). Engine oil is all over the shop; usually in the 10w40 range. But this topic has been done to death hasn't it?

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16 minutes ago, GC8E2DD said:

Motul PA90 and Gear 300, the TRD version of RBF600 (because it's cheaper). Engine oil is all over the shop; usually in the 10w40 range. But this topic has been done to death hasn't it?

 

After track/race orientated feedback not average daily driver. Not trying to find the best oil just distinguish what people are using on track.

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Ok, well that's all obviously at the novice club car end of your scale.

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Penrite 10/50 synthetic..

Motul gear and diff ..

TRD brake fluid..

Dilmar tea for driver..

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Engine: Motul 300v 15w50

Gearbox & Rear Diff: Motul FF LSD Type 2 75w90

Brakes: Castrol SRF

 

Why: I was recommended 300v for the engine many years ago by an original member of Clubsub - have always stuck with it since then. Plus my boss swears by it, and with his involvement with engine building/tuning in various forms of motorsport over the years (and dealing with Subarus) this further backs up my original recommendation.

Used Motul gear oils since I was using the engine oil already and it is apparently kinder on the synchros than the Redline LW shockproof I was using previously.

Castrol for the brake fluid as I haven't had much success with the Motul RBF fluid :-/ (I am pretty hard on brakes though).

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@Tony kinda irrelevant but with the Motul 300v do you find there is a strong sweet oily smell coming from exhaust, engine breather/blow by etc? I swear Motul drip a couple drops of Chanel No.5 in every bottle of oil. 

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We use motul rbf660 for brake fluid. Castrol edge 0w-40 for engine. Lsx90 for diff and syntrax for gearbox. This is with dog box. 

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8 minutes ago, gotasuby said:

We use motul rbf660 for brake fluid. Castrol edge 0w-40 for engine. Lsx90 for diff and syntrax for gearbox. This is with dog box. 

 

Just an fyi, the TRD brake fluid is Motul RBF660 (might be RBF600 as mentioned above. Can't remeber off the top of my head) however it's a shitload cheaper. $25 versus a 35+ I think.

Edited by Dairusire

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I use the high temp BNT brake fluid, never had an issue boiling brakes in my sti or mx5s. Cheap as too.

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Redline 75/90 LSD

Redline lightweight shockproof

Caltex Havoline 10W40 Semi-syn from Warehouse

Any one of Motul/Repco/Penrite/BNT either Dot 4 or 5.1 pref higher temp but don't care

 

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I'm running motul 4100 15w50 for the engine, its a motorbike oil, cheaper than 5100 but same viscosity and I've never had an issue with it (i think there was something else that made it good for a car too, some additive thats in it???)

brakes i run motul rbf 600 or 660, whatever i can get for a good deal at the time

trans is motul gear ff lsd type 2

Rear diff is motul pa90

 

I get a relatively good deal on motul and my engine builder swore by it, Never really ran anything else in my track car as I've never had an issue

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I have Motul H-Tech 100 plus.

 

I don't do track days often and I will be an amateur on the track anyway but my tuner said it will be fine on track as well.

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On 1/14/2017 at 5:10 PM, nztintin said:

I'm running motul 4100 15w50 for the engine, its a motorbike oil, cheaper than 5100 but same viscosity and I've never had an issue with it (i think there was something else that made it good for a car too, some additive thats in it???)

 

Motorcycle oils have no friction modifiers in them as they run wet clutches bathed in engine oil and the modifiers will ruin them. You're far better off running a proper automotive oil.

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