Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

SPRINT 6's 1966 LEMANS 2DR HT

2018 August
of the Month

  • Welcome to Forever Pontiac

    Welcome to Forever Pontiac, full of great ideas for Pontiac performance, maintenance, or for peer-to-peer assistance from Professional and DIY mechanics. Also, compete in our Pontiac monthly competitions. Please register if you'd like to take part.

  • 0
Sign in to follow this  
Alrob

Ethenol additives in fuels

Question

I have been reading alot lately about ethenol in fuel corroding your fuel system during long term storage. Ethenol absorbs moisture and can plug up and destroy your fuel system. I am going to drain my fuel tank and use the fuel rather then let it go stale, but what do you do about the lines, pump, carb etc. Has anyone experienced corrotion issues form ethenol fuel? and what can be done to prevent a problem.


Share this post


Link to post
Share on other sites

5 answers to this question

Recommended Posts

  • 0

Have you ever used Sta-bil? We were Justa talkin about this in storing your car thread.


Share this post


Link to post
Share on other sites

Tired of these Ads? Register Today!

  • 0

Have you ever used Sta-bil? We were Justa talkin about this in storing your car thread.

THIS.

Fuel Stabilizer prevents such things from happening with the fuel left in the car.

Share this post


Link to post
Share on other sites
  • 0

As long as it is exposed to air then the ethanol can attract water. The OH bond in ethanol attracts the H2 in water vapour and this causes the moisture in the fuel and corrosion. As for the storage adding a Stabil or some other storage chemical will bond to the ethanol OH portion of the molecule and create a neutral charge on the molecule not allowing for the attraction of the H2 in the water vapour. This bond does break down over time as fuel will separate with longer term storage (6 months plus) As for the carb if you can block off the vents and fill the carb bowls completely and seal them then the air cannot get to it and water will not be an issue. Simple solution is to run the car for 20 min per week and purge the contaminated fuel out of the carb and allow for the fresh fuel to enter the carb. The down side is after about 2 months you may have to buy another gallon of fuel.


Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

Tired of these Ads? Purchase Enhanced Membership today to remove them!
×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.