I recently bought an armor brass Zippo pipe lighter and found an old can of lighter fluid (red top). It's mostly full but I'm pretty sure I bought the can over 5 years ago. Does anyone know if it will still be good to use or should I just toss it? I also bought a KGM Vector Thunderbird insert and I found out that it fits too snug on the armor Zippo so I put it into a different regular sized case. I didn't think it was worth making a new thread for that info but I think others should know since I wasn't informed when I bought it and want others to know in case they were thinking the same.