Yea there are differences. One difference that I have seen over the years is that some fuel producers seal each container with an air-tight seal and some don't. The ones that don't I won't purchase because a fuel container that is not sealed air-tight will absorb moisture (water) over time from the ambient environment. Containers that are sealed air-tight with a seperate seal under the cap can be stored for quite a long time with no water being absorbed from the atmosphere. It is especially a problem if you buy fuel by case lots and don't use it right away. Just my 2 cents.