Earlier today I was mixing up some 2 cycle oil for my chainsaw. The bottle of oil was about half full and it's been that way for about 4 months. It smells like lighter fluid. I smelled another full bottle that hadn't been opened but is just as old, and it smells like normal 2 cycle oil - almost like fresh asphalt. Why does the first bottle smell like that? Did it go bad or something? It looks like it might be thinner too, but that could be my imagination.
Thanks
Thanks