When adding fuel stabilizer (G-FUEL, StaBil, SeaFoam, etc), should you add the stabilizer to an empty gas container and then pump gas into it.. Or should you pump the gas to fill it, then add the stabilizer?
Fuel stabilizer before or after pumping?
- Thread starter SwedishRider
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+1 Stabilizer first.
1) I fill the gas can 1/2 full
2) Add Stabilizer
3) Finish filling can
2) Add Stabilizer
3) Finish filling can
Originally Posted By: SwedishRider
When adding fuel stabilizer (G-FUEL, StaBil, SeaFoam, etc), should you add the stabilizer to an empty gas container and then pump gas into it.. Or should you pump the gas to fill it, then add the stabilizer?
If you can shake the gas can or tank it probably does not matter. But directly into a boat or car, add the stabilizer first to get it mixed properly.
When adding fuel stabilizer (G-FUEL, StaBil, SeaFoam, etc), should you add the stabilizer to an empty gas container and then pump gas into it.. Or should you pump the gas to fill it, then add the stabilizer?
If you can shake the gas can or tank it probably does not matter. But directly into a boat or car, add the stabilizer first to get it mixed properly.
Gosh some of you do live complicated lives .
Add it afterward and shake the can some as it mixes with little effort or add it before , either way it will mix...HONEST !
I don't understand the adding when half full logic unless that helps half go to the top and the other half mix the bottom
Add it afterward and shake the can some as it mixes with little effort or add it before , either way it will mix...HONEST !
I don't understand the adding when half full logic unless that helps half go to the top and the other half mix the bottom
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I've always wondered about this. I would have thought that driving the car more than about 27 feet would slosh the fuel in the tank enough to thoroughly mix everything regardless of whether you add before or after filling.
Normally just put it before. If i forget to well then obviously i put it in after i fill it up. Who cares it will mix properly when driven.
Lesser first, great second unless in high turbulence or in an actively mixing situation (oil).
Originally Posted By: RF Overlord
I've always wondered about this. I would have thought that driving the car more than about 27 feet would slosh the fuel in the tank enough to thoroughly mix everything regardless of whether you add before or after filling.
You have people winterizing a boat where its already on blocks for the winter and want the gas stabilized.
I've always wondered about this. I would have thought that driving the car more than about 27 feet would slosh the fuel in the tank enough to thoroughly mix everything regardless of whether you add before or after filling.
You have people winterizing a boat where its already on blocks for the winter and want the gas stabilized.
I will say it depends.
I added Stabil to my gas generator and it wouldn't start. Why? The stabil was all that was in the carb.
If adding to a completely empty fuel tank, put fuel in first before adding any sort of additive. Otherwise, you may prime your fuel system with nearly 100% additive.
Otherwise, it probably doesn't matter much. Given time, it will mix.
I added Stabil to my gas generator and it wouldn't start. Why? The stabil was all that was in the carb.
If adding to a completely empty fuel tank, put fuel in first before adding any sort of additive. Otherwise, you may prime your fuel system with nearly 100% additive.
Otherwise, it probably doesn't matter much. Given time, it will mix.
Always add additives before pumping fuel on an empty tank.
I always put the Stabil in before filling the tank.
Would any additive not mix on it's own with the fuel if you added it afterwards? I've always wondered as I often use maint. doses in my cars but sometimes I don't remember until after I put the gas and I debate whether to just dump it in or wait until the next tank.
Originally Posted By: InvalidUserID
Would any additive not mix on it's own with the fuel if you added it afterwards? I've always wondered as I often use maint. doses in my cars but sometimes I don't remember until after I put the gas and I debate whether to just dump it in or wait until the next tank.
Depends. Something like Red Line SI-1 or anything else with an UCL might be rather thick. I was thinking most of it would work its way into the fuel, but some might stay near the filler neck. When I use SI-1 I typically make sure there's a bit of fuel hitting the filler neck so that the additive will be washed down by the less viscous fuel. I think ideally you wouldn't want an extremely high concentration of the additive to reach the fuel line.
If you've ever tried diffusion experiments in high school chemistry, it's interesting how it works. You can do something like drop some dye in water and see how long it takes to distribute evenly. A little bit of movement helps. If you drop the dye in a small amount of water and pour more water in, it reaches the equilibrium distribution almost immediately.
Anyone ever drink a black and tan? If the liquids are at different densities and there's little agitation, they can actually stay separated for a while.
Would any additive not mix on it's own with the fuel if you added it afterwards? I've always wondered as I often use maint. doses in my cars but sometimes I don't remember until after I put the gas and I debate whether to just dump it in or wait until the next tank.
Depends. Something like Red Line SI-1 or anything else with an UCL might be rather thick. I was thinking most of it would work its way into the fuel, but some might stay near the filler neck. When I use SI-1 I typically make sure there's a bit of fuel hitting the filler neck so that the additive will be washed down by the less viscous fuel. I think ideally you wouldn't want an extremely high concentration of the additive to reach the fuel line.
If you've ever tried diffusion experiments in high school chemistry, it's interesting how it works. You can do something like drop some dye in water and see how long it takes to distribute evenly. A little bit of movement helps. If you drop the dye in a small amount of water and pour more water in, it reaches the equilibrium distribution almost immediately.
Anyone ever drink a black and tan? If the liquids are at different densities and there's little agitation, they can actually stay separated for a while.
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