I went fishing yesterday and was planning on going today so i just left my auger and sled in the back of my pickup last night. Well it got down to about -10 degrees and when I came out this morning there is green fluid on various parts of my auger. There's not a ton of it and it started just fine and I ran it for about 3-4 minutes and it seemed to be working just fine but I am wondering where this fluid came from and if it could cause any problems in the future.