Its not coolant, yes I tasted it its oily tasting..lol..right below the compressor and have noticed the AC blows less cold air everyday it seems. Just replaced the condensor (sp) last year and had the AC redone so should be no issues with the system with makes me think bad compressor. Also up until a few months ago there was a grind when I started my truck that sounded like it was coming from the compressor, guess not engaging:/ Anyone else experienced this problem and was it just the compressor you replaced?