LEXBIM Posted December 29, 2008 Share Posted December 29, 2008 Owners manual calls for ethylene only, but what would be the harm with propylene glycol in a GS300 I6. Bought the car recently and I think it has propylene in it. It is a pinkish color and tastes like ethylene but does not have an odor. No, I didn't drink it,just a drop on my tongue and washed it off. Quote Link to comment Share on other sites More sharing options...
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