What sealant are you using for threaded fuel fittings?

[EastMT]

 I used some sealant from the local auto parts store for two 1/8NPT connections. Both connections are seaping fuel. What sealant are you using that is unleaded and low percentage ethanol blend compatible?

 

[Markcsand]

Permatex thread sealant

 

[Jtmoney714]

Ptfe thread sealant

 

[wesinls]

Used this stuff as tractor supply - bottle will last a lifetime.

 

[lincster]

Permatex thread sealant

This.

 

[Grease Monkey]

https://www.grainger.com/product/30ZY81?gucid=N:N:FPL:Free:GGL:CSM-1946:tew63h3:20501231

 

[Dodd]

PTFE, The Best.

 

[77charger]

Blue lock tight 

 

[zilla68]

Used this stuff as tractor supply - bottle will last a lifetime.

View attachment 89100

that's what i used also on gas and diesel

 

[EastMT]

Thanks guys, appreciate the suggestions! Looks like I have some new options to try. 

 

[Realbadlarry]

I use Rectorseal TruBlu on everything now...  



Can True Blue be used on gas?
 
 








Can be used with lines carrying diluted acids, compressed air, ammonia, diluted caustics, oils, diesel, gasoline, jet fuel, kerosene, natural gas, Freon, solvents, soaps, steam and water.

 

[Morgan]

Threebond 1211. 

 

[Fullthrottleguy]

Used this stuff as tractor supply - bottle will last a lifetime.

View attachment 89100

this or true blue 

Earls (holley) sells this for their fittings (non AN) been using it for years I have not found anything better and definitely not found anything cheaper 

 

[Loganhawkins418]

Blue lock tight

 

[GBR]

Rector seal is made for fuel lines we use it for gas and diesel lines both

 

[J Alper]

i use 545, locktite

 

[cali kid]

When I did the fuel lines on my Mustang my local speed shop PMR race cars recommended me Permatex with PTFE 

 

[Rockwood]

this or true blue 

Earls (holley) sells this for their fittings (non AN) been using it for years I have not found anything better and definitely not found anything cheaper 

This x3.

 

[EastMT]

I like tractor supply but damn have they been going down hill. No Gasoila in the store. Guess I’ll order it. Thanks guys for all the suggestions. Will Gasoila one connection and PTFE/locktite the other.