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10-29-2021, 06:31 AM
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#1
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Senior Member
Join Date: Jan 2017
Posts: 7,494
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How far to drive after adding Stabil to gas
Hi,
Putting coach in storage today and my local gas station is closed for new tank install.
Anyway got a choice of a place about a mile away which is a bit awkward to get in to or place about 8 miles which is easier.
How far should I be driving and how long to run Genny to get Stabil thru the system?
Thanks,
__________________
2008 Phoenix Cruiser 3100
2012 Jeep Wrangler Sahara JKU.
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10-29-2021, 06:47 AM
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#2
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Senior Member
Join Date: May 2015
Posts: 154
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I would gas up at the place 8 miles away, adding the sta-bil at the pump. The drive back to storage with the genny running would use (assuming 7 mpg or so) more than a gallon of gas. That should be suffient to have sta-bil infused gasoline run through the fuel lines, filters, injectors and the genny carburetor. Of course, a longer drive wouldn't hurt and might give more peace of mind that the fuel has run through the system.
You probably know this, but when running the genny, put a load on it -- a space heater, for example -- to properly exercise it.
Good luck and maybe I'll see you down the road in the spring.
__________________
2014 Fleetwood Storm,
2008 Honda CR-V,
and two cats who enjoy being on the road.
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10-29-2021, 06:58 AM
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#3
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Senior Member
Tiffin Owners Club Ford Super Duty Owner
Join Date: May 2015
Posts: 1,941
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If you choose the 8 mile option, figuring you get around 7 MPG, you'll use around a gallon through your engine enroute. For the generator, I think the estimates are in the neighborhood of .5 to 1 gal. per hour (not completely sure on this), so 8 mile local road drive will take you around 20 minutes, meaning you'll run .15 to .3 gallons through the generator during the drive, plus however much runtime there is before and after you actually drive to your destination. Might not be exactly right, but makes sense to me anyway.
__________________
Mike and Cindy
2016 Tiffin Allegro Open Road 34PA
2018 Chevy Malibu
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10-29-2021, 07:02 AM
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#4
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Member
Join Date: Jun 2021
Posts: 38
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I've read that 20 minutes is about the time needed to get stabilizer into the genset carb. There is no need for stabilizer to get into your vehicle fuel lines and there is no need to fill your tank before storage.
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10-29-2021, 10:03 AM
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#5
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Senior Member
Join Date: Jan 2017
Posts: 7,494
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Thanks all, appreciate the help.
That's the coach stored away now :-)
__________________
2008 Phoenix Cruiser 3100
2012 Jeep Wrangler Sahara JKU.
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10-29-2021, 11:46 AM
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#6
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Senior Member
Join Date: Nov 2006
Location: Western NY
Posts: 6,149
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It sounds like the drive could do it but why take a chance oof it not quite being enough?
Gens usually use about 1/2 gal / hr at full load so partial loads and less that 1 hr proportionally less might be cutting it close w one way only?
Add the correct amount of stabilizer at home for the partial tank of fuel. Run the gen on the way to the fueling location. Add the balance of the stabilizer for a full tank and repeat for the trip home or to storage.
__________________
Don & Marge
'13 Newmar Ventana 3433 - '14 CR-V TOAD
'03 Winnebago Adventurer 31Y - SOLD
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10-29-2021, 12:02 PM
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#7
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Senior Member
Join Date: Jan 2017
Posts: 7,494
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Thanks, all done now.
__________________
2008 Phoenix Cruiser 3100
2012 Jeep Wrangler Sahara JKU.
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10-29-2021, 12:20 PM
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#8
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Senior Member
American Coach Owners Club
Join Date: Jun 2018
Location: SD
Posts: 899
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Quote:
Originally Posted by rogerstg
I've read that 20 minutes is about the time needed to get stabilizer into the genset carb. There is no need for stabilizer to get into your vehicle fuel lines and there is no need to fill your tank before storage.
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I would suggest filling your tank to prevent condensation of the water vapor in the air mixing with the ethanol in the gasoline as colder weather hits.
Also one of the benefits of stabil is corrosion prevention/inhibition from water already dissolved in the ethanol in the fuel.
As such, I think, it is imperative that the stabil/fuel mixture get well into and through your engine and generator.
__________________
2012 Dynamax Dynaquest 390 XL
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10-29-2021, 04:51 PM
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#9
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Member
Join Date: Jun 2021
Posts: 38
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Quote:
Originally Posted by Airboss68
I would suggest filling your tank to prevent condensation of the water vapor in the air mixing with the ethanol in the gasoline as colder weather hits.
Also one of the benefits of stabil is corrosion prevention/inhibition from water already dissolved in the ethanol in the fuel.
As such, I think, it is imperative that the stabil/fuel mixture get well into and through your engine and generator.
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The fuel system is a closed system, hence no condensate in the tank. But even if not a closed system, like a boat for example, condensation would require significant exchange of air flowing over the cold fuel. Also, there's the common sense question of, where is the humid air supposed to come from in the winter? People buy humidifiers for their homes due to dry air.
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10-29-2021, 05:09 PM
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#10
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Senior Member
Join Date: Nov 2006
Location: Western NY
Posts: 6,149
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Quote:
Originally Posted by rogerstg
The fuel system is a closed system, hence no condensate in the tank. But even if not a closed system, like a boat for example, condensation would require significant exchange of air flowing over the cold fuel. Also, there's the common sense question of, where is the humid air supposed to come from in the winter? People buy humidifiers for their homes due to dry air.
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Fuel systems have to have a vent / breather or the tank will collapse or pump not able to overcome a vacuum.
That said... I agree with your rationale in cold / drybwi ter climates. People talk about the tank insulating air and then condensing, then expelling air as temps warm and then the cycle repeats.
The problem with that IMO is there is a lag in tank / fuel temp increase & decrease vs the environment as it is not instantaneous. Thus when it warms outside and the air can hold more moisture the tank is warming and venting air / fumes so no / little moist air enters.
When is cools outside the ability to hold moisture decreases so by the time the tank & air/fumes above are drawing outside air in it is cold and relatively dry so little moisture enters. If it is cold enough to condense moisture in the tank irs cold enough to condense moisture in the air before it ever enters the tank.
I've seen a multi year test of a boat fuel tank left outside over multi years and NO condensation formed.
If you talk about always moist coastal areas (PNW orvsimilar) that could represent a different set of conditions and may be an exception to the above. For most of N USA & Canada I dont see it as a problem.
I have water separating fi,filter, on diesel engines in boat & motorhome and never see any moisture separating out after spring commissioning & start up
Ethanol may be a different story as it attracts moisture and MAY run contrary to normal inspiration of air & moisture. .
__________________
Don & Marge
'13 Newmar Ventana 3433 - '14 CR-V TOAD
'03 Winnebago Adventurer 31Y - SOLD
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10-29-2021, 06:29 PM
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#11
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Senior Member
American Coach Owners Club
Join Date: Jun 2018
Location: SD
Posts: 899
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Quote:
Originally Posted by rogerstg
The fuel system is a closed system, hence no condensate in the tank. But even if not a closed system, like a boat for example, condensation would require significant exchange of air flowing over the cold fuel. Also, there's the common sense question of, where is the humid air supposed to come from in the winter? People buy humidifiers for their homes due to dry air.
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People don’t store ethanol containing fuel in their homes
Why do some fuel systems have water separating filters?
Why do a gas powered aircraft have sumps
to drain water? I have drained a “significant” amount of water out of aircraft tanks after only sitting for a few days half empty.
It is 70 degrees out today and humidity is 65%, my tank is only 1/4 full.
I put it in storage today, Where is that moisture in the remaining 3/4 of a tank gonna go when the temp drops?
__________________
2012 Dynamax Dynaquest 390 XL
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10-29-2021, 09:48 PM
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#12
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,878
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Quote:
Originally Posted by Notayurt
I would gas up at the place 8 miles away, adding the sta-bil at the pump. The drive back to storage with the genny running would use (assuming 7 mpg or so) more than a gallon of gas. That should be suffient to have sta-bil infused gasoline run through the fuel lines, filters, injectors and the genny carburetor. Of course, a longer drive wouldn't hurt and might give more peace of mind that the fuel has run through the system.
You probably know this, but when running the genny, put a load on it -- a space heater, for example -- to properly exercise it.
Good luck and maybe I'll see you down the road in the spring.
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__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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