fuel additives in Winnebago vista 36y

10forty2 wrote:
Best practice is to use Sea Foam gas additive at 1/oz per gallon of gasoline at every fillup.

OK I wasn't going to comment but this goes WAY too far.

Using any additive at every fillup is totally unnecessary.

Using a good cleaner every 6 months or so is not a bad idea but SeaFoam does NOT qualify as a good cleaner and it is WAY overpriced.

Best heavy duty cleaner around it Berrymans B12 Chemtool, for both carbs and injectors. Techron is good for injector maintenance.
SeaFoam is WAY down on the list.

3 months...no problem. a year...I'd be concerned. Best practice is to use Sea Foam gas additive at 1/oz per gallon of gasoline at every fillup.

rgatijnet1 wrote:
There are NO additives that can revive your gasoline.

No but......odds are that it hasn't gone really bad in just 3 months.
Some additives will help with removing accumulated water and removing light deposits left from evaporation.

The manual with our Chevrolet Volt makes the claim that gasoline now has a one year shelf life (and will run the car's gasoline engine if needed to insure the fuel is used before it become stale). I always used Stabil in the past but since getting the Volt and reading that, I've not bothered with it anymore. Over the last four years I have not had any problems with stale gas. I've submitted an information request to the American Petroleum Institute and will report on their answer as to whether gasoline is now routinely blended with a stabilizing chemical. I've been a mechanic all my life and over the past 50 years I notice that I no longer have been smelling the stink of stale fuel nearly as often as I remembered whether it's been in a car, lawn mower, or RV. I would pretty much say with certainty that a full tank of RV gas would not go stale in 3 months. BTW, I also own a 36Y Winnie. As a side note, the best DIY upgrade you can do is re-route the power cable from the utility bay to the small compartment just behind it (which is pretty much useless for any storage anyway!).

Three months is not unusual and you should be fine. If you were asking about three years and the engine is running ruff with a power loss that would be different.

Start adding fresh fuel as you drive, add fresh fuel every time it goes down a 1/4 of tank, do this for 3 times to get fresh fuel mixed ASAP

The Vista is a gas coach. The only way the gasoline would generally be used for heating on such a motorhome is by running the generator to power an electric heater.

In general, I would expect three month old gasoline to be okay to use, though it's better not to let it sit. I would just drive off. In the future, when it will be parked for an extended time, the best action is to put an appropriate dosage of fuel stabilizer in and fill the tank all the way up, and then drive for a bit and run the generator for a bit (so that the treated gas gets through the gas lines and whole fuel system). You want to have the tank as nearly full as practical because that means there's less air space for moist air and so less condensation to put water in the gas.

Propane needs no special preparation for storage, and does not go bad or wear out or break down.

for the gas tank for the engine,stop at wal mart buy a can of sea foam and pour it in, and the next time your gonna sit for a month add a can before you you stop . and a can every 5k it,ll keep the engine injectors clean and the fuel system.

There are NO additives that can revive your gasoline. Once it has started to deteriorate the only thing an additive will do is slow the progress of gas that is already going bad.
For the three months that it has been sitting, I would go ahead and begin your trip and stop at a gas station soon and top off your tank with fresh fuel.
Next time put a gas stabilizer in to the fuel before you park it and be sure to run the stabilized fuel through your generator.

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