Road trip question

[humfrz]

Originally Posted by radroach

Make sure you check your tire pressure when you go above 500ft elevation, your tires deflate at altitude and then they repressurize at sea level, so then you have to let some air out when you return from the mountains.

how about .......5,000 feet ......

humfrz

[Bskeeter1]

I drove my frs from San Diego to Kansas City just fine driving through the Rockies there was no need to worry about gas stations there's plenty on the I-40 at least but it was during the summer but you should definitely keep and eye out on the weather because even though it was summer there was snow on the mountains luckily the roads were clear and it snowed a couple days before I got up there so there were no need for chains

[wheelhaus]

Originally Posted by radroach

Make sure you check your tire pressure when you go above 500ft elevation, your tires deflate at altitude and then they repressurize at sea level, so then you have to let some air out when you return from the mountains.

That's actually backwards. The reduced ambient air pressure at altitude means the tires want to expand. Going the other way, the increased ambient pressure at sea level wants to crush the tire, so you need to add more pressure. What you measure inside the tire (or any bladder for that matter) is pressure differential.

[smbrm]

You don't say which Rockies, but lets assume Canadian. You should check the snow tire/tire chain rules for B.C. As I recall the winter rules start October 1, for B.C.

There is Shell app that will tell you about fuel availability called Shell Motorist. The Gas Buddy App may also be of help with planning and prices.

[FRSBRZGT86FAN]

Originally Posted by radroach

Make sure you check your tire pressure when you go above 500ft elevation, your tires deflate at altitude and then they repressurize at sea level, so then you have to let some air out when you return from the mountains.

That is actually scientifically incorrect . It is exactly the opposite, it's like putting a balloon in a vacuum chamber the balloon will actually expand:[ame="http://www.youtube.com/watch?v=4VhD0_aXEe4"]Balloon in Vacuum Chamber - YouTube[/ame]

Due to the fact the air pressure forcing into the tire decreases meaning the air within the tire can expand. At sea level the opposite occurs.

[oldpueblo]

My record so far is 381 miles on one tank, and when I filled up it said I had just over a gallon left. That was averaging 31 MPG with maybe 2/3 freeway travel. You should be fine.

[FRSBRZGT86FAN]

You really should also make sure all you're fluids are topped off and all the tire pressures are fine. Especially coolant, and oil, that's a no brainer.

[mush]

i would start lookin for a gas station when u reach 200 miles, with that u still have over 100 miles left before u run outta gas... i think

[radroach]

Thanks for the lesson !

[Fluxx]

Finding fuel shouldn't be an issue, but I'd think the octane booster would be a better route than keeping a jug or two of gas in the car, especially if you plan on taking corners at speed. I haven't tried putting regular into my car, but my old 95 Trans Am ran pretty sluggishly if you put regular in it and it didn't have near the compression ratio these cars have. As long as you keep the car around 70-75 most of the trip you'll easily get over 300 miles from a tank.

[Cyau]

I drove 328 miles with the gas needle went below the redline on premium gas 93.

about 900 feet above sea level, 80% freeway driving.

just FYI

[Muaddib]

^ Based on my calculation & experience. When our needle is sitting on the empty line. We should still have more than 6 liters of fuel left.

[Cyau]

Originally Posted by Muaddib

^ Based on my calculation & experience. When our needle is sitting on the empty line. We should still have more than 6 liters of fuel left.

how sure are you on this??..

If this is true, that means we will still have 2 full gallons of gas at red line... which is another 40-50 miles of driving! that's...alot...

Can you prove this calculation of yours? It'll be awsome if it's true!

[bcj]

There's always going to be manufacturing variability for each car.
Nobody is going to be able to garantee your mileage.

Where's the pickup point, and how far above the bottom?
Going up hill or down when it starts gasping?
Any corners to slosh it all up one side or the other?