gas stabilization results after 2 months
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I have an expedition that usually goes 2 to 3 months between fill-ups and it's 115 degrees here right now (not sure if the heat really matters).
I've been adding 2 oz. MMO per 10 gallons for a couple of years now.
Thanks for posting this, I'll just use MMO in my daily driver for now on.
I've been adding 2 oz. MMO per 10 gallons for a couple of years now.
Thanks for posting this, I'll just use MMO in my daily driver for now on.
I've been adding MMO to my rarely driven truck too. This is even in the FAQ section of their website:
"Can I use MMO for winter storage as a fuel stabilizer?
Yes, you can use MMO as a fuel stabilizer. Use 4ozs of Marvel for every 10 gallons of fuel."
I wonder if stabil is good for anything at all past the two year mark after being opened? That's my only complaint about it (besides price), I never use it fast enough after opening it.
"Can I use MMO for winter storage as a fuel stabilizer?
Yes, you can use MMO as a fuel stabilizer. Use 4ozs of Marvel for every 10 gallons of fuel."
I wonder if stabil is good for anything at all past the two year mark after being opened? That's my only complaint about it (besides price), I never use it fast enough after opening it.
I think all carb jets are brass screwed into zinc alloy or aluminum.
But I mentioned engines.
But like I said, the massive deposits [relative] with the MMO leave me pondering... .
I may soak some brass and pennies with MMO and fuel just to see what occurs.
And thanks again for the testing, time, and trouble!
But I mentioned engines.
But like I said, the massive deposits [relative] with the MMO leave me pondering... .
I may soak some brass and pennies with MMO and fuel just to see what occurs.
And thanks again for the testing, time, and trouble!
Originally Posted By: Digital2k2
I wonder if stabil is good for anything at all past the two year mark after being opened?
Stabil won't officially claim it, but yes, based on my experience. I have used "too old" Stabil several times during my storage experiences, and it has never let me down. One bit of real good advice here is to TOP OFF your tank completely before storage. I fill mine until gas comes up into the filler neck. This eleminates the vapor space above the gas, and in turn eliminates all condensation.
I wonder if stabil is good for anything at all past the two year mark after being opened?
Stabil won't officially claim it, but yes, based on my experience. I have used "too old" Stabil several times during my storage experiences, and it has never let me down. One bit of real good advice here is to TOP OFF your tank completely before storage. I fill mine until gas comes up into the filler neck. This eleminates the vapor space above the gas, and in turn eliminates all condensation.
Update after one extra month (3 months total): no difference whatsoever compared to a month ago and thus I took no new pictures.
Now, I will try to put back the deposits into solution using fresh gasoline, simulating engine restart after a long storage.
Now, I will try to put back the deposits into solution using fresh gasoline, simulating engine restart after a long storage.
Thanks for the update!
Update for the update. After exposing gas samples to elements for 3 months, I rinsed them with fresh gasoline to put some deposits/oils back into solution, This emulated boat starting after layout and fresh gas getting into carb bowl. This is what's left after the rinsing and drying.
10% TCW3:
Stabil:
Seafoam:
Control (no additive) gas:
MMO:
Seafoam + Stabil:
In this final result, concentrated TCW3 is the best with little deposits that cannot be dissolved back by gasoline.
Stabil is close second, and Seafom does show some stabilizing results.
MMO is the worst, worse than the straight gas.
This actually confirms a tip I found on a classic car forum to pour TCW3 oil into a carb bowl before a long layout.
The results also raise a question without good answer. If Stabil is so good at controlling deposits "in vitro", how come my carb was ruined by using gas with stabil all the time?
Maybe the small residual deposits accumulated after near 10 years? Or maybe some octane boosting additives I used in the part produces the deposits? I guess I will never know.
From now on, my boat gas is treated by stabil and low concentration of TCW3. Will spike the carb bowl with more TCW3 before storage too.
10% TCW3:
Stabil:
Seafoam:
Control (no additive) gas:
MMO:
Seafoam + Stabil:
In this final result, concentrated TCW3 is the best with little deposits that cannot be dissolved back by gasoline.
Stabil is close second, and Seafom does show some stabilizing results.
MMO is the worst, worse than the straight gas.
This actually confirms a tip I found on a classic car forum to pour TCW3 oil into a carb bowl before a long layout.
The results also raise a question without good answer. If Stabil is so good at controlling deposits "in vitro", how come my carb was ruined by using gas with stabil all the time?
Maybe the small residual deposits accumulated after near 10 years? Or maybe some octane boosting additives I used in the part produces the deposits? I guess I will never know.
From now on, my boat gas is treated by stabil and low concentration of TCW3. Will spike the carb bowl with more TCW3 before storage too.
thanks for the update to this post. glad that I installed my water/ fuel separator filter a few years back. it is attached to the fuel line before it gets to the outboard. should catch anything left over that the stabil did not prevent. I make sure to fog my outboard before storing it every year.
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Originally Posted By: Vikas
But 10% TC-W3 is way high concentration to be used regularly in the fuel if you plan to run.
True. The 10% I took was from Mercruiser FI winterization procedure. Like I explained above, I'm going to inject a couple of CC of TCW3 into carb bowl before storage from now on. I run TCW3 routinely in only 1:500 concentration.
But 10% TC-W3 is way high concentration to be used regularly in the fuel if you plan to run.
True. The 10% I took was from Mercruiser FI winterization procedure. Like I explained above, I'm going to inject a couple of CC of TCW3 into carb bowl before storage from now on. I run TCW3 routinely in only 1:500 concentration.
Makes me ponder the results....
i have been using MMO for 3 decades. why haven't i had trouble?
Originally Posted By: morris
i have been using MMO for 3 decades. why haven't i had trouble?
Do you use to stabilize gas for long storage (1 year or longer) and is gas exposed to air in carburators?
i have been using MMO for 3 decades. why haven't i had trouble?
Do you use to stabilize gas for long storage (1 year or longer) and is gas exposed to air in carburators?
I am definitely impressed with this experiment and it may explain some concern I have been harboring. I'm a big fan of MMO and have used it for hundreds of thousands of miles, along with many years in multiple vehicles and small engines.
I will continue to use it, but will no longer in my truck. It takes me around a month (give or take) to go through a tank of gas. I was dosing it with MMO/TCW3 mixture until a few months back. I posted a few times about the issue because I was getting alot of pinging and couldn't figure out why. It continued even after a bottle of Regane, but stopped after I ran a bottle of Redline through the gas.
My only thought was that MMO/TCW3 mix or the gas had created some build up. This experiment somewhat sums up my guess. I think a lubricant in the gas is still a good idea, but I'll give more thought as to the application.
I will continue to use it, but will no longer in my truck. It takes me around a month (give or take) to go through a tank of gas. I was dosing it with MMO/TCW3 mixture until a few months back. I posted a few times about the issue because I was getting alot of pinging and couldn't figure out why. It continued even after a bottle of Regane, but stopped after I ran a bottle of Redline through the gas.
My only thought was that MMO/TCW3 mix or the gas had created some build up. This experiment somewhat sums up my guess. I think a lubricant in the gas is still a good idea, but I'll give more thought as to the application.
You don't want to draw too many conclusions from the experiments. It simply showed that MMO + gas will produce a lot of deposits when sits for long time exposed to air in hot places. Nothing less, nothing more.
I was actually very impressed with MMO as oil additive in my oil baking study. It made one of the worst oils perform like one of the best.
I was actually very impressed with MMO as oil additive in my oil baking study. It made one of the worst oils perform like one of the best.
Well, to me what are the 'deposits' anyway?
products of oxidation of hydrocarbons and fuel contaminants?
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