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Thermostat Temp

Discussion in '200, Avenger/Sebring, Cirrus/Stratus/Breeze' started by chuzz, Mar 17, 2017.

  1. boblonben

    boblonben New Member Level 2 Supporter

    So what is the problem with 50/50 pre-mix antifreeze? Seen test on these along with pure antifreeze diluted to direction and you can not tell a difference. So ???
  2. AllanC

    AllanC Active Member

    If you are persistent and willing to take some extra time, you can perform an adequate DIY flush on the cooling system. Get 5 - 6 gallons of distilled water. Remove lower radiator hose at radiator and drain. Remove inlet and outlet heater hoses at coolant adapter manifold that sits over the transaxle and attached to engine head near #4 cylinder.

    Then add some distilled water into the heater hoses and let flow back into the engine head. Flush 5 - 6 gallons of distilled into the system, reattach radiator hoses and then run engine for short period of time. Then remove heater hose attachment at coolant adapter and extract as much fluid as possible. Detach lower radiator hose at driver side header tank and use a suctioning device such as a turkey baster (buy NEW one for kitchen!) and extract fluid from driver side header tank. If you do this tedious process then you should get the distilled water level decreased sufficiently that you can add at least 1 gallon of antifreeze.

    After filling with 1+ gallon of antifreeze run engine to thoroughly mix. Check fluid freeze point and it should be round -34 deg F. You have accomplished an inexpensive flush through extended persistence.
  3. valiant67

    valiant67 Rich Corinthian Leather Level III Supporter

    Mainly cost. You usually pay more for premixed.
  4. Bob Lincoln

    Bob Lincoln "CHECK FAULT CODES" Level 2 Supporter

    I find just the opposite. Pre-mixed is usually about $3 a gallon cheaper in MA.
  5. Doug D

    Doug D Virginia Gentleman

    Advance Auto lists Zerex G-05 premix for $16.99 and non-mixed for $19.99. So yes, initially premix is cheaper but the yield is twice that with the non-mixed if you dilute it with distilled water (50/50 mix) so essentially the pure antifreeze is lower cost based on the final mix/usage.
  6. Doug D

    Doug D Virginia Gentleman

    Put another way you'd have to buy ($33.98) 2 gallons of premix to yield the same amount from one gallon of pure antifreeze ($19.99 plus whatever a gallon of distilled water costs).
  7. AvengerGuy

    AvengerGuy Member

    A gallon of distilled from WalMart is about $1.00 after tax around here.
  8. ImperialCrown

    ImperialCrown Moderator Level III Supporter

    I usually save a couple of milk jugs of distilled water from the dehumidifier in the basement. Soft water is also good for cleaning things like glass as it doesn't leave spots behind.
    valiant67 likes this.
  9. pt006

    pt006 Member

    There might be a radiator petcock on your car. Took me 10 minutes to find it on the old Sebring. Passenger side bottom near the shroud. Difficult to see or turn. But doable. Since your car's system is in good shape, a chemical flush is not needed nor recommended. A 'flush' in your case is just diluting the old antifreeze [leftover in the heater core , block and radiator] with distilled water; running the engine till hot and mixing/circulating the water; and then draining that. see post #11

    The orange antifreeze is hoat. So is Zerex G-05
    The purple antifreeze is oat, I think. Check your manual. I prefer the Mopar stuff. Seems like it treated you right for a long time.