RV gasoline life span in long term storage
Due to health problems our motorhome has been stored unused for over a year. How long does gasoline last before it goes bad?
Forum Discussion
jdc1 wrote:
You'll be fine. How long do those unwanted new cars on the lot sit before they drop the price in half?
How much gas do you think new cars have in them?
fitznj wrote:
I had a classic car that did not get driven too often (<150/year); it
had at least 2 year old gas in the tank and drove ok each time.
However - it sat unused for more than couple of years and the float bowl
and jets had a chalky residue which had to be cleaned out.
If you can; run the engine to operating - every once in a while and maybe
add fresh gas with seafoam.
My old cars I would normally put fresh gas in them every time I used it. Never fill, but enough to go and back.
I also put a valve in the fuel lines so I could shut off gas, and run the carb dry.
But I'm not sure that modern fuel systems are not more sensitive to old gas, or that the modern blends of gas keep that well.
The pickup I have now I make a point to drive some every week. When the gauge reads 1/4, I put in 5 gallons. Before I hook up to trailer, I fill the tank so over half is fresh. If it has been couple of months without using the trailer, I notice a decrease in mileage the first tank. Run down to 1/4, refill a couple times, better.
