7 month old gas, what to do?

[Guest]

A buddy of mine is buying an 03' 22V and it has had gas in the tank since August without fuel stabilizer in it. He is going to test drive it next weekend, what do you think they should do? The owner is not sure how much gas is in the tank, but it is probably over half full. Should he fill her up and see how it goes, drain the gas or something else?

[chpthril]

Add a couple bottles of Stabilizer, fill it up, and run it. May be kinda stale, but should be usable with some fresh gas and stabilizer

[Guest]

Cool, thanks for the info, I will let him know. I will also let him know to sign up on this site so I don't have to keep asking questions for him!

[dogbert]

What chpthrl says will work.

[wannabewakeboarder]

Make sure you put the highest octane in it though.

[chpthril]

Make sure you put the highest octane in it though.

No, please don't. Higher octane fuel is less volatile (takes more heat to ignite) which will compound the issue of the stale fuel. Stick with 87oct

[mtnsmith]

I don't agree with the octane statement there. I'd run it with the same gas that is already in there, if it was high octane, then ok. There was a thread some time back that took on the premium/regular gas myth. Here it is.

http://www.tigeowners.com/forum/show...&highlight=gas

[laserfish]

No, please don't. Higher octane fuel is less volatile (takes more heat to ignite) which will compound the issue of the stale fuel. Stick with 87oct

Chpthril is right! Seems like it should be the other way around but it is not. Use quality 87 octane, and you should be fine. Just be sure and use stabilizer this time.

[chpthril]

I don't agree with the octane statement there. I'd run it with the same gas that is already in there, if it was high octane, then ok. There was a thread some time back that took on the premium/regular gas myth. Here it is.

http://www.tigeowners.com/forum/show...&highlight=gas

Mine or wannabe's statement???

[mtnsmith]

Sorry, wannabe's. I hit the reply button before your post was up.

[chpthril]

Sorry, wannabe's. I hit the reply button before your post was up.

[noworries]

The problem with old gas is it turns to sticky varnish. I thought I'd burn off some old nasty smelling gas by putting it in my lawn tractor. I ended up almost seizing a valve but bending a pushrod in the process. Fortunately, I got by with just replacing the pushrod, and a new tank of gas. If the gas smells bad, get it out of there, don't even mix it, particularly if the tank's half full.

[wannabewakeboarder]

Chp,
Dosen't gas loose some of its octane after sitting for a while? So wouldn't you want to add higher octane fuel to even the octane out? Please correct me if I'm wrong haha I'd like to learn somthing.

[dogbert]

Chp,
Dosen't gas loose some of its octane after sitting for a while? So wouldn't you want to add higher octane fuel to even the octane out? Please correct me if I'm wrong haha I'd like to learn somthing.

Higher octane gas goes bad more quickly. Compound that with the fact they don't sell as much of it. It also has different ignition characteristics. You really need to stick to the octane rating recommended by the manufacturer. I can always tell when they substitute a different (higher) octane rating at the gas pumps where I get gas for my truck.

[eks]

Higher octane gas goes bad more quickly. Compound that with the fact they don't sell as much of it. It also has different ignition characteristics. You really need to stick to the octane rating recommended by the manufacturer. I can always tell when they substitute a different (higher) octane rating at the gas pumps where I get gas for my truck.

I looked at the manual and never found the right octane, Does anyone know what is the right octane for the MP 340?