A good tank of gas?

Long story short my truck has been down for 14 months, it had ~12-15 gallons of 93 octane in which obviously isnt going to be good stuff. So I added 10 gallons of 101 octane along with some STP fuel treatment and a bottle of gumout fuel system treatment since I figure the lines could be gummed up a bit. Im replacing the line from the filter on to the rails and a new set of rails etc. Im just wondering if this tank of gas is going to be good enough to break in my new motor. I dont know how bad the gas detiorated(sp?) over 14 mo. Ill have HPT hooked up to make sure I dont get any KR.

 

i personally wouldnt chance it with as much money as you have in the new motor but it might be fine. sounds like you already added some money to it( gas)

 

It probably had closer to 10 gallons in it, I couldnt get any more out with the hose I had to syphon the gas out, Im just guessing how much was in there because when I swapped out the fuel pump it had about 2/3 to 3/4 of a tank. So that should be about 14gallons but that was just eyeballing it. Im thinking about putting 5 more gallons of 101 in it.

 

man, as much as you dont want to hear it i would use this chance to clean out the tank and get fresh fuel

 

Burn that **** up in your lawn mower!

 

If you had Fuel stabilizer in it, it would be Okay. if it was a summer mix and you didn't have fuel line open to vent it, it'll probably be okay, cause it's made to Not evaporate fast.. But the safe thing is to disconnect a line and let the pump get it out, I'm sure you have a broke friend that would love it (thats what I do to my boat every year) and it'll guarantee you success with the new setup.. Lines that where full will probably be okay, it's where it had a chance to evaporate and crust/jell up thats a prob...Just my .02, but 20 minutes work will ensure success...

 

I just did some reading and it seems I will be ok. It is not going to be the best fuel I have ever burned through my truck but it should be ok according to a couple of different sites. Im going to purge the lines of a couple gallons before I start sending gas to the motor to make sure there isnt any gunk in the lines. Ill burn a few gallons out of it then throw some fresh 93 in there. Main thing I need to watch for is knock and bad pinging.

 

just drain it

 

why not just hook a battery and jump the wire in the fuse block and it will pump it all out.then add your 101 and all the other goody.

 

i had some old fuel in my tank , about 5 gallons for 6 months and it started and ran fine but i got it to the gas station right after wards. from what i read my fuel only lost some octane and thats about it.