fuel/oil mix question

Snapper King · 01-09-2008, 02:26 PM

Okay here comes another quetion I need some of ya all's help with. I have a 30 gallon tank and back in May I filled the tank with fuel/oil mix as required. I ran the motor then and agian in June but havent ran the motor since. I was told that if the mix sets to long that it start jelling up. Now is there something I can add to the mix and it will be fine for the next time I run my outboard with out gumming up my carbs or should I drain the tank and start from fresh. Any help is highly appreciated. Thanks

Craig

Telum Pisces · 01-09-2008, 03:01 PM

Was fuel stabilizer added to it back in June? If not, I would be dumping that gas and start with new fuel. You may still have issues though with fuel that was left in the carbs. A certain amount of fuel will remain in the carbs and will jelly up in the bottom of the float bowl. After your boat has been sitting for 6 months without fuel stabilizer, you may still need to clean/rebuild the carbson top ofemptying the gas tank.

The Maintenance Shoppe · 01-09-2008, 05:02 PM

Get rid of half of the gas and top off tank with premium unleaded. The octane of the fuel degrades over time leading to detonation and pre ignition. Detonation and pre ignition can blow you motor.

sosmarine · 01-09-2008, 05:19 PM

The new Marine Sta Bil stabilizer is suppose prevent the octane loss.

The Maintenance Shoppe · 01-09-2008, 05:25 PM

STABIL prevents fuel from gumming up, varnishing, and turning sour. It does not prevent the octane value from degrading. There presently is not a chemical on the market that preserves octane rating. There is plenty of octane boosters on the market but a lot of are harsh to the fuel system.

01-09-2008, 02:26 PM	#1
Snapper King Senior Member Mingo Join Date: Oct 2007 Location: Pensacola Posts: 184	fuel/oil mix question Okay here comes another quetion I need some of ya all's help with. I have a 30 gallon tank and back in May I filled the tank with fuel/oil mix as required. I ran the motor then and agian in June but havent ran the motor since. I was told that if the mix sets to long that it start jelling up. Now is there something I can add to the mix and it will be fine for the next time I run my outboard with out gumming up my carbs or should I drain the tank and start from fresh. Any help is highly appreciated. Thanks Craig

01-09-2008, 03:01 PM	#2
Telum Pisces Senior Member Blue Marlin Join Date: Sep 2007 Posts: 4,737	RE: fuel/oil mix question Was fuel stabilizer added to it back in June? If not, I would be dumping that gas and start with new fuel. You may still have issues though with fuel that was left in the carbs. A certain amount of fuel will remain in the carbs and will jelly up in the bottom of the float bowl. After your boat has been sitting for 6 months without fuel stabilizer, you may still need to clean/rebuild the carbson top ofemptying the gas tank.

01-09-2008, 05:02 PM	#3
The Maintenance Shoppe Senior Member Snapper Join Date: Nov 2007 Posts: 582	RE: fuel/oil mix question Get rid of half of the gas and top off tank with premium unleaded. The octane of the fuel degrades over time leading to detonation and pre ignition. Detonation and pre ignition can blow you motor. __________________ *The Maintenance Shoppe* Full service boat, pwc, and trailer repair 4048 Creighton Rd Pensacola, FL. 850-221-6789 www.themaintenanceshoppe.com

01-09-2008, 05:19 PM	#4
sosmarine Senior Member Sailfish Join Date: Sep 2007 Location: Navarre/Town Center Posts: 1,856	RE: fuel/oil mix question The new Marine Sta Bil stabilizer is suppose prevent the octane loss.

01-09-2008, 05:25 PM	#5
The Maintenance Shoppe Senior Member Snapper Join Date: Nov 2007 Posts: 582	RE: fuel/oil mix question STABIL prevents fuel from gumming up, varnishing, and turning sour. It does not prevent the octane value from degrading. There presently is not a chemical on the market that preserves octane rating. There is plenty of octane boosters on the market but a lot of are harsh to the fuel system. __________________ *The Maintenance Shoppe* Full service boat, pwc, and trailer repair 4048 Creighton Rd Pensacola, FL. 850-221-6789 www.themaintenanceshoppe.com

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