Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

Fuel expansion at increasing altitude

  • Please log in to reply
2 replies to this topic

#1 rverdoold


    Subaru Nut

  • Members
  • 680 posts
  • Netherlands

Posted 21 August 2011 - 11:22 AM

Just got back from my trip to the Alps and got to a little smelly problem. I drive a 1999 1.6 impreza which has a bi-fuel system with direct injected propane (or LPG). For starting I use gasoline till the cooling water reached a certain temperature and then the computer switches off the fuel system and continues with propane. However in Italy there is a village named Livigno and they sell normal gasoline almost half the price of where I live (tax free). So I filled it up completely at 3280 feet altitude. I continue my trip into Swiss over a mountain pass at 7200 feet and the car starts to smell of gasoline at the rear. I switched to run on gasoline to what I think to release the pressure in the system.

Does gasoline expands at higher altitudes, enough to overflow or at least smell a lot?

#2 Rooster2


    Subaru Master

  • Members
  • 4,728 posts
  • Indianapolis

Posted 21 August 2011 - 12:09 PM

I have seen gasoline expand with higher temperature, if it was cool when filling, then warmed up later, as the day's temperature rose. I don't think altitude would make any difference.

#3 rverdoold


    Subaru Nut

  • Members
  • 680 posts
  • Netherlands

Posted 21 August 2011 - 12:16 PM

it was cold in the morning I filled, about 18 deg C, later on the day about 29. Plus the heat from the diff and exhaust

(i lost a piece of heat shield of about 3 by 8 inches have to figure out from where)

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users