fluid recommendatiosn

[wemtd]

How often does everyone change your fluids/oil for spirited driving, autocross, trackday uses of our cars?

 

 

p.

[DeanG]

Engine oil & brake fluid before every track day, once a year if no track days. Twice would be better. Transmission, differential, coolant every couple of years.

[yellowss7]

Hi Paul, I use a good quality synthetic and change the oil and filter every 6 or so track days. You aren't revving the nuts off your car, so as long as you are using a good oil and filter and your temps are in the normal range, you need not be overly concerned. IMO

 

Brake fluid should be changed at the beginning of each season. Keeping an eye on the level and if there is any issue with your pedal travel.

[BruceBe]

We change the Mobil 1 5w-50 oil in competition vehicles every other race/track weekend, depending on oil temps. Stock CSR's, in particular, can run rather fearsome oil temperatures.

 

In addition to an annual full bleed, brakes should be bled prior to each race/track weekend, regardless of pedal feel. If the pedal feels good, just push a little fluid through the calipers - even high-quality motorsport brake fluid can micro-boil in the caliper. Just push enough until it clears up. You don't want to get half-way through a hot race weekend, and then need to bleed the system in the field, after you've lost confidence in the brakes on-track.

 

For the rear, we use Mobil Delvac Synthetic Gear Oil (75w-90), which will give a very long service life in dual-purpose vehicles.

 

-Bruce