Want to get my car on E85 was going to buy a 205L drum but noticed the local United servo in Patterson lakes has E85 and its also cheaper to buy. Just want to know if there are any differences between the 2? I just ordered a E85 tester should arrive in a week from the USA so will be checking the quality of E85 at Patterson lakes but I read somewhere that there are 2 batches a summer batch and a winter batch is this true? If there are 2 different batches then might be best to get it by the drum if so what’s the storage life of this stuff in the correct drum? As you can tell I don’t know a great deal about this stuff so all info would be helpful Cheers, Niko