I worry about doing something similar to the lawn mower. Dad has those plastic gas containers with: gasoline for the mower; gasoline and oil for the chain saw; different gasoline and oil mix for the snow blower. I don't know HOW he keeps them straight, but he knows exactly which is which. I won't use any until he comes over and points to which one I am to use for the mower. I don't think insurance covers it when you do that, huh?