[Z06] Recommended Fluid Change Schedule.
06-02-2009, 10:35 AM
#1
Melting Slicks
Thread Starter
Recommended Fluid Change Schedule.
I drive my Z pretty hard and do 4 or 5 HPDE’s a year.
The maintenance schedule in the owner’s manual isn’t real clear on when to change all the fluids.
What do you guys recommend for the mileage/time change intervals for:
The maintenance schedule in the owner’s manual isn’t real clear on when to change all the fluids.
What do you guys recommend for the mileage/time change intervals for:
- Brake Fluid
- Clutch Fluid
- Transmission Fluid
- Rear Axle Fluid
06-02-2009, 11:45 AM
#2
Melting Slicks
Not sure if it's right... but here's what i do:
Brake Fluid: Bleed brakes after any event they get soft at - works out to every 2-3 events
Clutch Fluid: Turkey baster the reservoir at every oil change
Tranny: Every 6-7 events
Diff: Every 6-7 events
'Event' = 1 HPDE day. No idea what to do for W2W Racing...
(I changed the tranny/diff more often on my C5Z06... but i figure these fluids are not seeing very high temps due to the coolers).
Brake Fluid: Bleed brakes after any event they get soft at - works out to every 2-3 events
Clutch Fluid: Turkey baster the reservoir at every oil change
Tranny: Every 6-7 events
Diff: Every 6-7 events
'Event' = 1 HPDE day. No idea what to do for W2W Racing...
(I changed the tranny/diff more often on my C5Z06... but i figure these fluids are not seeing very high temps due to the coolers).
08-22-2016, 09:46 PM
#5
Race Director
Prior posts are good.
OM indicates for dif change every 24 track hours.
I do tranny at the same time, using OEM fluids
Clutch use a DOT 4. When stock I used cheap Prestone DOT 4 and never had issues. Now with HCIE and a McLeod RXT twin dick clutch I'm using the same fluid as brakes, see below. If you do a clutch, install a remote bleeder so you can do a full fluid flush, otherwise do the Ranger method when the fluid gets dark.
Brakes, before any high speed HPDE (150+) or 3-6 months. OEM front brakes as you are probably aware get very hot. Two quality, inexpensive brake fluids are Motul RBF 600 or Wilwood.
One other track related item is to grease the rear toe link zerk fittings
before each track event. These are located behind the rear axle just inside the rear wheel. These are the only two grease fittings on the car.
Enjoy the car. As you have probably discovered, track events use the car's performance way beyond street driving and push the fluids harder. If you see oil temps on track higher than 265* you will want to use some other oil than M1 5W-30. Everyone will have an opinion on what to use. When stock I used M1 0W-40 as I saw 285* oil temps and 245* water temps (factory coolant change interval is 5 years). Now I use Amsoil 10W-30 as that is what my engine builder recommended.
OM indicates for dif change every 24 track hours.
I do tranny at the same time, using OEM fluids
Clutch use a DOT 4. When stock I used cheap Prestone DOT 4 and never had issues. Now with HCIE and a McLeod RXT twin dick clutch I'm using the same fluid as brakes, see below. If you do a clutch, install a remote bleeder so you can do a full fluid flush, otherwise do the Ranger method when the fluid gets dark.
Brakes, before any high speed HPDE (150+) or 3-6 months. OEM front brakes as you are probably aware get very hot. Two quality, inexpensive brake fluids are Motul RBF 600 or Wilwood.
One other track related item is to grease the rear toe link zerk fittings
before each track event. These are located behind the rear axle just inside the rear wheel. These are the only two grease fittings on the car.
Enjoy the car. As you have probably discovered, track events use the car's performance way beyond street driving and push the fluids harder. If you see oil temps on track higher than 265* you will want to use some other oil than M1 5W-30. Everyone will have an opinion on what to use. When stock I used M1 0W-40 as I saw 285* oil temps and 245* water temps (factory coolant change interval is 5 years). Now I use Amsoil 10W-30 as that is what my engine builder recommended.
09-01-2016, 12:11 PM
#6
do you guys grease bushings with any frequency? I get some squeaks that drive me crazy and wondering what to apply and where to apply it to knock these out. Particularly front drivers side.
