How long can E10 fuel be stored?
There are many different opinions concerning how long it is ok to store any fuel (E10 fuel or petrol), 2 weeks, 90 days, 1 year, or longer, before losing the properties that are required for proper and safe operation of your engine. There are too many variables (e.g., the age of fuel when purchased, temperature, humidity, use of stabilizers and the type of storage containers) to accurately predict how long.