Antifreeze coolant-Ethylene vs Propylene
I'm preparing to change the coolant (antifreeze) in my '99 Holiday Rambler. It is a Cummings ISC 8.3L (350hp), with 70+k miles. I'm choosing to replace the fluid with SCA (currently in there), instea...
Forum Discussion
Since you are in California, you might check whether there is an environmental regulation requiring the use of propylene glycol, or special handling of ethylene glycol. Dealing with ethylene glycol toxicity is why alternative formulas have become available with a propylene glycol base.
We went through a brief period in this state when auto service centers were required to "recycle" ethylene glycol antifreeze by filtering and reusing. Most service simply responded by refusing to do antifreeze service and the regulation soon got repealed.
FWIW, the greatest source of ethylene glycol in the environment in most parts of the U.S. is not automotive products, rather the runoff from airport de-icing stations.
We went through a brief period in this state when auto service centers were required to "recycle" ethylene glycol antifreeze by filtering and reusing. Most service simply responded by refusing to do antifreeze service and the regulation soon got repealed.
FWIW, the greatest source of ethylene glycol in the environment in most parts of the U.S. is not automotive products, rather the runoff from airport de-icing stations.
