Howdy folks,

 

I remember that a few months ago members were looking forward to the release of SF Marine Pro.  I see it on amazon, and is a tad expensive but I am sure faithful SF users won’t mind.  The new add says it can stabilize fuel for 2 years!

 

......snake oil, I tell you????

I keep saying read the MSDS sheets on all of this stuff and you will amazed at what is in them...or not.

Hydrocarbon blend* Blend 100%

 

*Note: The exact composition of the above listed chemicals are being withheld as a trade secret.

 

Signal Word DANGER!

 

https://seafoamsales.com/uploads/2019/09/MP-SDS-US-ENG-v20190924.pdf

I'm making the switch this coming season to straight gas - 

Glad I have the option conveniently and for piece of mind. 

Costs a little more though.

A-Jay

I'll wait for my local wally world to stock it - ill probably only burn through 30 gallons of fuel this year if I am lucky

8 hours ago, HenryPF said:

ill probably only burn through 30 gallons of fuel this year if I am lucky

30 if you're lucky, 60 if you're luckier.  Right?

Sunoco has some very good info on their site about gasoline and storing it, but this is a paragraph on storing their racing fuel.  

Perfectly stored, most race fuels will last more than a year. If you are not sure you can use the fuel up within 2 years, add a quality fuel stabilizer to the fuel as soon as you purchase it. Fuel stabilizer can only postpone fuel degradation; it can’t fix fuel that’s already bad.

Now, they also say their race fuel is not the same blend as their pump gas.  Nor is their 87 octant the same as the 93 octane.  Pump gas is driven by the cost at the pump, so 87 octane gets the cheapest stuff they can put in it.  Making the volatile additives used for octane booster evaporate much quicker.  Fuel stabilizer does not stop the volatile additives from evaporating, how it's stored affects that.  A full, tightly sealed container, stores fuel much better than a partially full, vented container.  

I used Seafoam as soon as put fuel in the tank and I only buy fuel from high volume stations, (gas is going bad just sitting in a gas stations tanks) and I will not run fuel in my outboard motors that has been stored more than a couple of months.  If I know I'm not going to be using it for a few months, I pump it out and put it in something else,  or if it has sat for a couple of months, and fuel is in it, I pump it out to be run in something else.

After over 50 years of building and racing these things, I know first hand what bad fuel can do to two stroke outboards, seen it too many times.  So, I could care less what other do or say about running old gas, I know what I'm going to do, and it dang sure ain't going to be running it in an outboard motor.

Now, I've never worked on or run a four stroke outboards so can't say how it affects those.