Stabilizer with every fill up

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Father's Day

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Hello Everyone
I just found out I'm supposed to be putting stabilizer in with every fill-up.
Can anyone tell me the best brand to use
Thanks
George
 
I've had good luck with the blue/green sta-bil marine. Should be readily available.

For years I used PRI-G....got to the point that the only place I could find it was on Amazon and now it's frequently out of stock there, as well.
 
Parthery said:
I've had good luck with the blue/green sta-bil marine. Should be readily available.

For years I used PRI-G....got to the point that the only place I could find it was on Amazon and now it's frequently out of stock there, as well.
Click to expand...
Thanks
Stay safe
 
I don't think that is necessary if you use the boat enough. Definitely at the end of the year. Ring free every other fill up and stabilizer at layup is my suggestion.
 
Yup, what Parthery said. Marine Sta-Bil and Ring Free every fill up. If you use it all the time, your fuel system is treated 100%. If you add stabilizer at end of season, you never know if it's made it all through the system before lay-up.
 
many opinions on this subject.. I use Ring Free every fill up. My choice, there are other options out there. GL
 
Ring free is not a fuel stabilizer. It is designed to reduce engine deposits only. Yamaha sells its own brand of fuel stabilizer, which is a different product.

I've studied fuel additive chemistry since the mid-'70s and I can tell you that stabilizers are not rocket science. They contain anti-oxidants and metal inactivators. All brands work well as far as I can tell.

I've used them in of my boats since 1975 and never had to rebuild a carburetor (except on a Honda BF8 which has water intrusion), clean injectors, or even had a dirty VST filter. I mostly have used StaBil and I use it every fillup.

I use both marine StaBil and Ring Free right now, but I'm ready to switch to Chevron Techron Marine Fuel Treatment. It contains both deposit control agents and stabilizers in one product. It's also a lot cheaper.
 
I do not use stabilizer during the boating season. Like it has been said, there is no substitute for fresh gas. I do add a ring free type of additive but I have a 2 stroke and it is more important in a two stroke.
I do add Stabil for winter layup.
 
Ring free on every fill. Stabilizer is used based upon usage. In the spring and fall when I go through a full tank every week, no stabilizer. In the summer when I only fill once per month I do add the stabilizer.
 
Ring Free and Sta-Bil Marine.

I was told to put both in before filling but not sure if that is correct or not. I feel like determining how much to put in is less of a science as you don’t know how much you are going to fill up exactly. Ballpark, yes which I guess is better than not doing it at all
 
I'll be the contrarian here...
I use "stabilizer" in the last tank(both tanks) before I put the boat away for the winter...or if I'm not going thru the gas...which is never....
I was using Startron in every fill for a long time because I had the panic over ethanol. I would buy it when it was buy1 get 1...

I didn't use RingFree on my ox66s except as a yearly cleanout. I used a MUCH cheaper "ring cleaner " than Yamaha koolaid.
I buy my gas from 3 fuel docks that all have Valvtect gas. I read what they have to say on their site and basically.."its already in there"
If you trailer, from what I understand, its already in Exxon/Chevron/BP...any of the quality major brands...its what they mean by "detergent"

I'm in NJ and the only gas available is E10. When the switch over happened many years ago, there were horror stories but that is not the case now.
Ethanol destroyed old rubber parts and hoses and fiberglass fuel tanks. That has all washed thru. Now if they go to E15 we're in trouble....
 
Valvetect gas has stabilizer in it and is supposed to keep the fuel good for 1 year. It also has increased detergent. You would gain little benefit by adding RingFree or an additional stabilizer.

Top Tier detergent road fuels probably have enough detergency that you won't get much more benefit from using RingFree or an equivalent fuel additive. But they don't contain additional stabilizers. E10 starts to oxidize pretty rapidly after about 1 month, depending on conditions. So you should still add fuel stabilizer if you are using road fuel.

Unbranded ethanol-free marine fuel, which includes most Rec90, does not need to meet any detergency standards. So it makes sense to add a product like RingFree. Non-ethanol fuels oxidize at a slower rate than E10. But if you are not going to use a boat much for 3 months or longer, you should add stabilizer.
 
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