This will probably sound dumb, but...............

[Gulf]

Can I run either of the tanks dry, or do I have to make sure to switch over just before they run out? In other words, is the fuel system self priming?

I know the answer may be in the Owners Manual, but I don't pick up my new (to me) H1 for another couple of days and then I'll have a 1500 mile drive home. Woo hoo!!!

Thanks!

[Gulf]

Can I run either of the tanks dry, or do I have to make sure to switch over just before they run out? In other words, is the fuel system self priming?

I know the answer may be in the Owners Manual, but I don't pick up my new (to me) H1 for another couple of days and then I'll have a 1500 mile drive home. Woo hoo!!!

Thanks!

[Gulf]

Can I run either of the tanks dry, or do I have to make sure to switch over just before they run out? In other words, is the fuel system self priming?

I know the answer may be in the Owners Manual, but I don't pick up my new (to me) H1 for another couple of days and then I'll have a 1500 mile drive home. Woo hoo!!!

Thanks!

[Beastmaster]

The system is not designed to run dry. Please move the tank over before you run out.

Also - make sure that the tank select switch works before you leave on a trip.

Hope this helps,
Steve

[Gulf]

Thanks Steve, yes it does.

[SunsetShannon]

For clarification, in the event of an emergency (or extreme stupidity in my case) you do have time to switch the tanks once she starts sputtering. I found that out while driving my H1 home from CT for the 1st time

[DRTYFN]

If you run a vehicle's gas tank dry you run the risk of sucking sediment into the fuel system and clogging or impairing the flow through the fuel filter and injectors.

[Gulf]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by SunsetShannon:......you do have time to switch the tanks...... <HR></BLOCKQUOTE>

Good to know it might work in an emergency, but I'll be trying my best to avoid it. Glad it worked for you! Thanks!

[Gulf]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DRTYFN:If you run a vehicle's gas tank dry you run the risk of sucking sediment......... <HR></BLOCKQUOTE>

Ah........now I always disagree with that theory.

The fuel is picked up (in most vehicles) by a tube that goes from the top of the tank to a little above the bottom. Some vehicles have the fuel pump submerged in the tank, but it still draws from above the bottom. Any crud and water swills around on the bottom of the tank, and the fuel is drawn from a little above the bottom to avoid sucking the crud up. All that happens when the fuel is run too low, is that air will now be sucked into the pickup instead of fuel. To suck up anything else would require the pickup to imitate an elephants trunk and search for more fuel at a lower level.

One of our other vehicles is an F150 with twin tanks. We always run each tank empty before switching over. No fuel problems so far, knock on wood, in 170K miles. Actually, that's the reason I asked the original question.

I've come across some diesels that are self priming, and some that definitely aren't!
Don't want to make a mistake with this one!

[GeneseeMtn]

If you run a tank dry & the engine won't start, you may be able to open the bleed valve on top of the fuel filter & prime the fuel system using the same operation you use to "purge" the air from the fuel system after changing the fuel filter.

[Gulf]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by GeneseeMtn:
If you run a tank dry.................. <HR></BLOCKQUOTE>

Fifteen hundred miles later I have it home. Managed not to run either tank dry, but if I had, the technique you mention is detailed in the Owners Manual as the correct procedure.

Thanks.

Gulf (no longer a wannabe!)

[Beastmaster]

Congrats! Welcome to the 10,000 unit group!

[Gulf]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Beastmaster:
Congrats! Welcome to the 10,000 unit group! <HR></BLOCKQUOTE>

Thank you!

Is that 10,000 civilian H1s?