Radiator flush/refill!
Thread Starter
Racer
Joined: Mar 2008
Posts: 254
Likes: 0
From: Perth W.A
Radiator flush/refill!
Hey all
i finally got my heater core out of the vette, it's a 90 model! after finding all the hidden bolts argh!!(won't be doing that again
)
anyway i am going to flush the radiator and refill it while replacing the core!
My questions are on the 90 model the radiator pressure cap is up near the windscreen! is this where i can refill the radiator? or do i have to take off the plastic cover over the radiator?(is there another pressure cap there?) thanks
also what coolant do i use? i think i read that models prior to 94 don't use antifreeze!? and i do live in Perth W.A so it's not like it gets below 0 degrees C here!
is normal coolant with that glycol... stuff adequate?
i finally got my heater core out of the vette, it's a 90 model! after finding all the hidden bolts argh!!(won't be doing that again
)anyway i am going to flush the radiator and refill it while replacing the core!
My questions are on the 90 model the radiator pressure cap is up near the windscreen! is this where i can refill the radiator? or do i have to take off the plastic cover over the radiator?(is there another pressure cap there?) thanks
also what coolant do i use? i think i read that models prior to 94 don't use antifreeze!? and i do live in Perth W.A so it's not like it gets below 0 degrees C here!
is normal coolant with that glycol... stuff adequate?
Drifting
Joined: Sep 2003
Posts: 1,363
Likes: 7
From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
Yes, the 'radiator cap' on the 'surge tank' (black tank near windshield) is where you fill the cooling system.
THere may also be a 'bleeder' underneath the throttle-body (brass regular-screw-driver type).
1990's (and all cars) do require anti-freeze. However, your year does NOT use 'Dex-Cool'. It uses old style 'green' ethylene glycol anti-freeze with silicates.
Suggest either Texaco or Zylex brand, make sure it's their 'old style' green version.
THere may also be a 'bleeder' underneath the throttle-body (brass regular-screw-driver type).
1990's (and all cars) do require anti-freeze. However, your year does NOT use 'Dex-Cool'. It uses old style 'green' ethylene glycol anti-freeze with silicates.
Suggest either Texaco or Zylex brand, make sure it's their 'old style' green version.
Thread Starter
Racer
Joined: Mar 2008
Posts: 254
Likes: 0
From: Perth W.A
Yes, the 'radiator cap' on the 'surge tank' (black tank near windshield) is where you fill the cooling system.
THere may also be a 'bleeder' underneath the throttle-body (brass regular-screw-driver type).
1990's (and all cars) do require anti-freeze. However, your year does NOT use 'Dex-Cool'. It uses old style 'green' ethylene glycol anti-freeze with silicates.
Suggest either Texaco or Zylex brand, make sure it's their 'old style' green version.
THere may also be a 'bleeder' underneath the throttle-body (brass regular-screw-driver type).
1990's (and all cars) do require anti-freeze. However, your year does NOT use 'Dex-Cool'. It uses old style 'green' ethylene glycol anti-freeze with silicates.
Suggest either Texaco or Zylex brand, make sure it's their 'old style' green version.
We have coolant that has that glycol stuff and then we have antifreeze!, hmmm i will have to have a look at them at the shops!
Thread Starter
Racer
Joined: Mar 2008
Posts: 254
Likes: 0
From: Perth W.A
Ok thanks
i bought an Australian brand for our conditions called Nulon, it's antifreeze, antiboil, and something else, can't recall from memory!
but seems to be the best stuff we have! it's a concentrate so need to add water!
i bought an Australian brand for our conditions called Nulon, it's antifreeze, antiboil, and something else, can't recall from memory!
but seems to be the best stuff we have! it's a concentrate so need to add water!
