Jeep Wrangler Forum banner
Cancel
Create thread New Garage Forums

Jeep in driveway 2 years - what to do with GAS

Jump to Latest
1 - 20 of 29 Posts
B

BlueKreweBaseball

· Registered
Joined
·
11 Posts
Discussion starter · #1 ·
One flat tire lead to two and an already existing flat spare. 2003 jeep wrangler then sat long enough for battery to die. Two years later, I'm buying tires and new battery. What's the best way to handle the gas that has been sitting there? I don't remember how much was in before it went dead.

I've heard to sifen out and add fresh fuel and cleaner and also to add seafoam.
Some have said that I will need to drop the tank.

My 2003 only has 100,000 miles and I want to make sure I don't screw the jeep up and be out alot of $$$ by not handling this the proper way
 
#3 ·
I would siphon out the old gas, and put fresh gas in. Then, I'd change the engine oil and filter. After that, I'd check all other fluids (brake fluid, trans, transfer case, diffs, etc). After that, I'd check the state of the air filter (is it in good shape, change if necessary). You can also do a visual inspection of the intake near the air filter and also the muffler for critters which may have made it a home. After that, I'd attempt to start it.
 
#4 ·
This is the JK wrangler section, might want to ask in the TJ section.

Personally I may go through the trouble of dropping the tank and trying to dump most of the gas out, re-install the tank with new gas, and run Seafoam through it when you start it. Do an oil change before you start it too, and check the coolant. Seems like the safest route and if the extra work upfront means less work and cost later than that's what I would do and suggest.

Good luck.
 
#5 ·
Add some fresh gas from a 5-gal container and some octane booster/gas conditioner. How much old gas sat in the tank?

That or siphon the old gas and start fresh. Or drop the tank, which I'm sure you want to avoid.

I'd personally lean towards the complex method and remove the gas and change the oil. The first option is the easiest but also risky.
 
Discussion starter · #7 ·
XJtoJK said:
This is the JK wrangler section, might want to ask in the TJ section.

Personally I may go through the trouble of dropping the tank and trying to dump most of the gas out, re-install the tank with new gas, and run Seafoam through it when you start it. Do an oil change before you start it too, and check the coolant. Seems like the safest route and if the extra work upfront means less work and cost later than that's what I would do and suggest.

Good luck.
Click to expand...
Thought I clicked on the right forum and saw it was posted here instrad
 
#14 ·
I would do this, assuming I did not have time to drop the tank:

Siphon out old gas
Change fuel filter
Add new gas from 5 gallon container
Change engine oil and oil filter
Inspect and replace air filter if needed
New battery
Start her up

If you have the time however, dropping the tank to remove all of the gas is the best method to ensure all is well. A new fuel filter should pick up debris from old gas, but it is still not 100%.
 
#18 ·
Not really sure where the fuel filter on a TJ is but on Lightnings we can remove the fuel filter, run a hose from where the filter was into a jub and turn the accessories on. It primes the pumps and starts to pull the fuel out of the tank.
 
#19 ·
Open the gas cap an smell it. If it smells like gas, add a little gas stabilizer to to it and some fresh gas and run it. If it smells like varnish, try and drain it, either by siphoning (if you can) or dropping the tank.
 
#20 ·
my biggest concern is was the gas that in it mixed with ethonal? if not id just put some fresh and maybe an additive in it and run it and then do a full tune up. plugs, wires, fuel filter ect. if the ethonal has been sitting i would def drop the tank and get it all out. i made that mistake once
 
1 - 20 of 29 Posts
About this Discussion
28 Replies
18 Participants
Last post:
sparky
Jeep Wrangler Forum
posts
9.1M
members
495K
Since
2005
A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models!
Full Forum Listing
Explore Our Forums
JK General Discussion TJ General Discussion TJ Technical Discussion JK Technical Discussion YJ Technical Discussion