Longivity of gasoline
The tank is half full with EXXON premium.
How long can I do this before the gas goes bad?
Thanks
If you really cannot drive your car for a long time, I would put gas stabilizer like 'Sta-Bil'
BUT, I would more worry about the flat spot building in your tires. Just drive around 20 min or so once a week to prevent this issue.




1. Battery drainage will happen after you stored it for too long (say 1-2 months). If you can hook up a trickle charger to maintain the charge it would be all fine.
2. Brake discs get rusted. This is especially a problem if there's a rain and you store the vehicle outside.
3. buildup on injector nozzle. This can be easily prevented by a good additive. Use Chevron Techron and fill up the tank. That's the only one approved by MB.








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What I've learned and been told is the following;
- Always keep the tank topped up to avoid condensation in the tank and use rec gas which contains no ethanol
- Flat-spotting of the tires is a reality. Temporary or permanent seems to be dependent on tire brand and length of time left parked
- Jacking the vehicle in the air releases tension on the suspension but isn't good for it, long term
- Starting the engine every few days does nothing good. Most wear on an engine is at start-up
- A trickle-charger will keep your battery happy and increase longevity
Our ramps: https://www.raceramps.com/car-storag.../flatstoppers/
Trickle-charger: https://www.batteryminders.com/2012a...acid-batteries I have both the 2012 and the 2012-G for AGM batteries
Here in Canada, I have a 7kw generator with a 5 gallon capacity. I keep another two 5-gallon containers and three 2-gallon containers, all filled with super and Stabil. I rotate the gas out every spring, using the gas in our vehicles and filling the containers with fresh gas and Stabil. I've been thru the ice storm of '97 - '98, promised myself I'd never get caught unprepared ever again....
What I've learned and been told is the following;
- Always keep the tank topped up to avoid condensation in the tank and use rec gas which contains no ethanol
- Flat-spotting of the tires is a reality. Temporary or permanent seems to be dependent on tire brand and length of time left parked
- Jacking the vehicle in the air releases tension on the suspension but isn't good for it, long term
- Starting the engine every few days does nothing good. Most wear on an engine is at start-up
- A trickle-charger will keep your battery happy and increase longevity
Our ramps: https://www.raceramps.com/car-storag.../flatstoppers/
Trickle-charger: https://www.batteryminders.com/2012a...acid-batteries I have both the 2012 and the 2012-G for AGM batteries
Here in Canada, I have a 7kw generator with a 5 gallon capacity. I keep another two 5-gallon containers and three 2-gallon containers, all filled with super and Stabil. I rotate the gas out every spring, using the gas in our vehicles and filling the containers with fresh gas and Stabil. I've been thru the ice storm of '97 - '98, promised myself I'd never get caught unprepared ever again....




Comes at a price though, at over $180 USD.
https://www.hyperlube.com/blog/blog/...soline-go-bad/
https://www.livescience.com/58117-do...ne-go-bad.html
https://repairpal.com/blog/can-gasoline-go-bad
It's usually less of a concern if you don't store it more than half a year, or 1-2 years with stabilizer so most of time it's not a problem at all, but gasoline does go bad.
What I've learned and been told is the following;
- Always keep the tank topped up to avoid condensation in the tank and use rec gas which contains no ethanol
- Flat-spotting of the tires is a reality. Temporary or permanent seems to be dependent on tire brand and length of time left parked
- Jacking the vehicle in the air releases tension on the suspension but isn't good for it, long term
- Starting the engine every few days does nothing good. Most wear on an engine is at start-up
- A trickle-charger will keep your battery happy and increase longevity
Our ramps: https://www.raceramps.com/car-storag.../flatstoppers/
Trickle-charger: https://www.batteryminders.com/2012a...acid-batteries I have both the 2012 and the 2012-G for AGM batteries
Here in Canada, I have a 7kw generator with a 5 gallon capacity. I keep another two 5-gallon containers and three 2-gallon containers, all filled with super and Stabil. I rotate the gas out every spring, using the gas in our vehicles and filling the containers with fresh gas and Stabil. I've been thru the ice storm of '97 - '98, promised myself I'd never get caught unprepared ever again....
Hadn't been started in that time.
Connected the battery and away it went.
The fuel is our (Australian) premium but nothing special.
The car ran perfectly.




As far as E-85 being superior, not so sure. That crap supposedly absorbs moisture with a passion. We don't have it here in Quebec, and though we'll use it when travelling from SW to SE Florida, I would never leave that stuff in my tank long-term. I've been told that it chews up fuel lines etc. I'll just pay 40 cents more per gallon to use 91 octane rec gas and buy peace of mind
I ran my W163 ML320 on it for 14 years and and never had a problem with water in the fuel or hose deterioration.
Older vehicles not designed for Ethanol do have a problem with rubber hoses and seals.




Having said that, millions of people are driving their cars with E-85 every day with no issues. But our X6 sits there not moving for around 250 days a year. I'm happy to pay a bit more for rec gas knowing there's no ethanol in the tank, possibly chewing up fuel lines etc. If I'm wrong, it's cost me maybe $70 extra over the year for the 40 cents more per gallon for rec gas.
I can live with that....
If you are referring to 85% Ethanol you require around 30% more fuel to be injected to maintain AFR's in an acceptable (to your engine) range.
I'm a little lost.
We have E85, over here that is 85% Ethanol but this is used in hot engine to extract the last HP form them.




I now realize that when I saw "Ethanol", I assumed it was all E-85. I just researched the ethanol thing and now know that there are ethanol and ethanol-free pumps everywhere. Standard is E-10, with some places selling E-15. I also learned that the ethanol rating is on each individual pump. E0, E10, E15 and even E85.
On the off-chance that I pump the wrong fuel into the X6, I'll still be fueling with rec gas. But I am anxious to fill up my 4Runner at my favorite Shell pump here in Montreal so that I can see if it's got ethanol.
Thanks for the correction!




Which do people believe burns cleaner, alcohol or gasoline from refined crude oil?
Hint: One of the them needs a ton of additives to run clean, the other needs none.





