I use the regular red Stabil for every fill up, and in my daily drivers as well. The cars run so much smoother, it's very noticeable. I use 1 oz. per every 2.5 gallons, (as per instructions on the bottle) sometimes adding more. So yeah, I buy a lot of this stuff. But the ethanol in fuel is terrible, it eats rubber fuel lines for lunch.

 

i didnt know it had all these benefits. used it when storing boats for years but never in a car. i will start using this stuff.

 

+ 993 Stabil has been a staple product for the snow blower and winter storage for the 993's, but I was unaware of the ethanol issue. Most gas stations in MA appear to now have 10% ethanol, so I'm keeping some Stabil in the car for each fill-up. I also keep some octane boost in the car for those trips northern VT and NH where it's difficult to find 93 (most stations only carry 91 up there). Thanks for the heads up.

 

MSDS:
http://www.co.vermilion.il.us/MSDS/S...Marine_SDS.pdf

60 to 70% isoparaffin (mineral oil) other contents are secret parts of the special sauce.

https://www.goldeagle.com/tips-tools...myths-debunked

Lots of marketing info, hear say from users. No lab tests could be found on this stuff.

I found that if one has a hard to start weed wacker and one adds a jigger of Techron to its gas tank after sitting over the winter it seems to start right up!

 

Probably all about the same but i use Star Tron.

 

EMBPilot,
Not sure the fuel blend back East; but in Socal, we have both a summer and winter blend of ethanol. 10%-15% depending on the fuel station.
Also, for the most part, our highest premium octane rating is 91.

I use the marine Sta-bil at every fill-up to help protect injectors and rubber components that come in contact with fuel...

 

The amount of ethanol in your fuel is not the issue. Folks tend to confuse ethanol with methanol used as a fuel additive many years ago. The methanol attacked any rubber in your fuel system.

The issue is water. Buy your fuel from a station that does not remove water from their underground storage tanks on a regular basis. Or, from a station that has low turnover of its fuel tanks, and water will accumulate at the bottom of the tank. And, can eventually be pumped into your car's fuel tank. Not good. So, the best place to buy fuel is a major station that sells lots of fuel over the short haul. This lessens the chance for water entrainment.

Moisture enters all underground tanks through the atmospheric vents on the tanks. Since the tanks are buried, they experience lower temperatures than above ground. So, moist air that enters the tank through the vents will condense out in the tank. Once the moisture separates from atmospheric air, it runs down the sides of the tank and collects at the bottom of the tank since product in the tank is not as dense as the water.

Normal station procedures call for monitoring the water level in all underground tanks and removing it on a regular basis. Small or discount gasoline dealers are more apt to be relaxed in controlling water in their storage tanks.

Ethanol is hydroscopic and will absorb water until it becomes supersaturated at which point the ethanol/water blend will separate from the gasoline. Once separated from the gasoline, the ethanol/water solution will not burn in modern engines.

Gas station operators found out, the hard way, that they have to control the amount of water in their underground tanks. The major oil companies spent millions rebuilding automobile engines that failed due to the ethanol separation. But, more than the costs of fixing failed engines, their reputations suffered greatly.

 

+1 I run Star-Brite every tank to keep the fuel fresh.

93 octane with ethanol is only available here in NJ and Tri-state for the past ten years.

I add Gas treatment once a month https://www.cermastore.com/fuel-trea...-gasoline.html

I don't run this in the 993 but my bikes, you can run this in the 993 with stable or Star-Tron and never have an issue, you should search your area..lots of VP dealer around. http://www.vpracingfuels.com/vintage You want no lead and this fuel has no ethanol.

Ethanol is a real issue with Carburetors and older type fuel lines. Not that big of a deal with our cars.