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Fuel addatives?


coffee break

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Since most of us do not drive our 7 every day, what fuel additive(s) do you use to keep your fuel systems from getting gummed up?

My case is related to Webbers, but I'm sure FI can be subject to gunk issues.

Lately I've been using Stabil 360. I was talking with my brother today and he uses Seafoam in his m'cycles.

What have you had luck with?

 

Dang! I wish I had spelled "additives" correctly when I started the thread!

Edited by coffee break
Dang spelling error
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I was concerned about such additives to degrade my fuel cell bladder or the foam inside (they are anyway overdue for replacement) and never used any of this stuff.

But I have had the car sitting with California E10 for up to 5 months one time and (unfortunately) quite often 1-2 months. No problem. Car started every time.

I did clean the injectors a while ago, just to be sure. Did not make any difference. I am wondering if these stabilizers are a bit over-rated.

Is there any credible report of modern engine fuel systems that actually gummed up (not with simple dirt but some kind of polymerized fuel??) or is that only another urban myth or marketing plot?

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50:1 two stroke oil works great. Don't laugh it really does. Lubes the top end as well.

 

And they make scented versions of it. Your exhaust can smell like strawberry or cannabis.

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I use Stabil in my gas when I park the seven for the winter.

 

I am sold on the stuff. About 15 years ago, I bought a medium sized Toro snow blower, and asked the guy if I should shut off the gas and run it dry at the end of winter. I had been doing this in lawn mowers and chainsaws to keep them from gumming up, because of past bad results of doing nothing.

 

He said, No, don't bother, just put in stabil, and forget about it.

 

I did that, and have not had any problem with starting or running with that snow blower, and I just used it a couple weeks ago with 1 1/2 year old gasoline. I am convinced it works.

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...... I am convinced it works.

 

Jerry, sorry for being the Doubting Thomas here...this is my problem with the anecdotal evidence. I really believe you it "works", which practically means it does not make anything worse. But I am rather looking for evidence of actual "fouling" if such stabilizers are NOT added. I read reports of gumming , varnishing, oxidation etc. and I kind of suspect people are just citing each other. There is no doubt that water separation can happen with ethanol containing gas exposed to humidity or that injectors can clog with particles (ask MoPho about it :smash: )but that is a separate story.

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So that's what I'm smelling while driving around in Denver.

 

Probably not.

 

The legal cannabis doesn't smell anything like it did in the past, the smoke or unsmoked pot. Its all buds that are quite green and wet with resin. The grow operations throw away the leaves which has caused a problem with dogs getting into the dumpsters and ODing on the leaves.

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Jerry, sorry for being the Doubting Thomas here...this is my problem with the anecdotal evidence. I really believe you it "works", which practically means it does not make anything worse. But I am rather looking for evidence of actual "fouling" if such stabilizers are NOT added. I read reports of gumming , varnishing, oxidation etc. and I kind of suspect people are just citing each other. There is no doubt that water separation can happen with ethanol containing gas exposed to humidity or that injectors can clog with particles (ask MoPho about it :smash: )but that is a separate story.

 

My own personal experience with lawn mowers, chain saws , weed wackers etc, was that if you left old gas in them over the winter, the carbs would be gummed up, you would experience hard starting and bad running, and the carbs needed rebuilding. With the Stabil I have not experienced this. I have never experienced this effect in a car, but I'm not taking any chances.

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My own personal experience with lawn mowers, chain saws , weed wackers etc, was that if you left old gas in them over the winter, the carbs would be gummed up, you would experience hard starting and bad running, and the carbs needed rebuilding. With the Stabil I have not experienced this. I have never experienced this effect in a car, but I'm not taking any chances.

 

That's exactly what I experienced using two stroke oil/gas in 4 stroke machines of all kinds that sat for long periods. That is how I stored my motorcycles over the long South Dakota winters. I haven't cleaned a lawn implement or motorcycle carb in a great many years.

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OK, I won't argue with success. The whole idea is to have it start and run well in the spring.

No question there is more than one way to get a clean start after a long period in storage. For my chainsaw and string trimmer, I drain the unused fuel back into the fuel jug and run the motor dry. I do this more to not have alcohol present to destroy gaskets and such. For larger motors I use fuel conditioner to combat the ill effects of alcohol.

As for personal use, that's another story....:cheers:

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