Vette C5

I am looking into replacing all of the fluids on my 03Z. Why? Because some need to be replaced and I am the 4th owner at 23,000miles so I would like to have everything done for the peace of mind.

Which fluids do you use for...

- Oil/Filter
- Clutch/Brake Fluid
- Transmission Fluid
- Differential Fluid
- Coolant

BONUS
- Favorite alcoholic beverage

neutron82

oil/filter - mobil 1/wix
brake/clutch - haven't changed it yet
trans- amsoil torque drive atf
diff - amsoil severe gear
coolant - gm dexcool

bonus - i don't drink lol

hamdog

If you are road racing I would recommend Redline for all. If not, stick with GM fluids. Great for street use.

Edmond

Amsoil for all fluids, even power steering.

I'm not a drinker.

pickleseimer

Oil: Mobil 1, with a PF46 filter
Clutch and brakes both use Delco Supreme 11 brake fluid, # 12377967
Transmission: Royal Purple Max ATF (6-sp manual)
Diff: Dexron LS Gear Oil 75w-90, # 88862624, has the friction modifier already in it
Coolant: AC Delco DexCool

Recently did all my fluids so it's set for a while - it's a seasonal car so not too many miles every year. Will change oil / filter once per year and the others as per the service manual recommendation. Fluids are cheap maintenance.

Beverages? Alcoholic beverages? Don't need no stinkin' alcoholic beverages!

striper

Filter - NAPA Gold (same as WIX)
Oil - Pennzoil Ultra or Royal Purple
Clutch - Prestone DOT 4
Brakes - Castrol GT LMA
Trans - RP Synchromax
Diff - RP Maxgear
Coolant- Prestone Dex-Cool

Beverage- Chateauneuf du Pape or Coke Zero

c5vette211

I recently put royal purple in oil, diff, addative with prestone for radiator, trans. Noticable difference. I use dot 4 in brake and clutch. pepboys has a printable coupon for 12qts of poyal purple right now for $70 so....

MR Turco

you know you are going to get 1000 different opinions on what to use? From what i read in the autox forums. Mobil 1 0w-40, Napa gold filter, Castrol whatever ATF, Amsoil Severe Gear, Super blue brake fluid.

baxsom

as a point of interest. it is illegal to sell blue brake fluid in FL

SaberD

-Amsoil 5w30/Mobil1 filter
-Motul brake/clutch
-Amsoil ATF
-GM LS gear oil
-GM Dexcool

...

-Tequila

C66 Racing

- Oil/Filter
I use a racing oil, but used this top tier of AMSOIL oil in my CTS-V (LS2 engine) while it was my daily driver:
AMSOIL Signature Series 100% Synthetic 5w30 (Product Code ASLQT)
I run a Wix 51042 in my Z06 at the track and think that is a good option unless you use long oil change intervals.

- Clutch/Brake Fluid
AMSOIL Series 600 DOT 4 Racing Brake Fluid (Product Code BF4SN)
Dry Boiling Point - 580F, Wet Boiling Point - 410F

- Transmission Fluid
AMSOIL Torque-Drive Synthetic Transmission Fluid (Product Code ATD1G)

- Differential Fluid
AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 (Product Code SVGQT)

- Coolant
I use a 75% distilled water, 25% dexcool ratio at the track with one bottle of AMSOIL Dominator Coolant Boost (Product Code RDCBCN)

I also use:
AMSOIL P.I. Performance Improver (Product Code APICN)
AMSOIL Synthetic Power Steering Fluid (Product Code PSFCN)

I can get any of the above for forum members at my dealer wholesale price, about 25% below retail, via the AMSOIL Preferred Customer Program. Drop me a PM if interested.


P.S. BV Chardonnay (grew up just south of Napa)

04C5-in-MD

Oil- mobil 1 or amsoil ( best deal at time) 5w-30
Clutch- ( I have an auto)
Tranny- Schaffer ( aftermarket tranny) or SYNTHETIC alternative
Diff- mobil1 ( cant remember weight) plus 4 oz. mobil limited diff addivtive.
Coolant- Dex-cool with watter wetter ( Lucas Oil) change every 2 years

Beverage- Yuengling Lager Draft, or Skyy and tonic lemon and lime

knkjens

Previous owner of my 99 C5 used Mobil 1 15W-50. Needs an oil change now and am wondering if I should stay with the same weight. MOst of what I'm reading says lighter weight if not racing the car.

It's a daily driver that lives in Vegas.

baxsom

thicker than the recommended 5w30

AU N EGL

- Oil/Filter - M1 15-w50 / GM
- Clutch/Brake Fluid Castrol SRF
- Transmission Fluid M1 ATF
- Differential Fluid M1 Gear Oil
- Coolant Water and 2 bottles or Water Wetter

BONUS
- Favorite alcoholic beverage Bourbon or Single Malt Scotch

knkjens

15W-50 seems thick. Why such a difference between that and what GM recommends.

Thanks

AU N EGL

40w or 50w is for race engines. Need the very high heat tolerance and the Zinc content for anti-wear.

30w is too thin for high heat uses

knkjens

Other than a couple of basic upgrades (CAI), it's a standard Z5. Should I stick with the GM recommended 5W30???

Thanks

1blkc4

all of my vettes I run amsoil with no problems including my jetski

craig04c5

Can you also use Prestone Dot 4 for the brake fluid? I currently use Prestone Dot 4 for the clutch and would like to keep it simple and use Dot 4 for both.