Go ahead...ask those car questions you were always afraid to ask...

[abawp]

Quote, originally posted by M.Diesel »

Now quick, someone multiply the tank capacity by 45mpg and try to figure out how I can go over 700 miles......

14 gal, right?

That would be:
14*45 = 630 miles

Someone is either burning veggie oil, or has an extremely disciplined right foot

[M.Diesel]

14.5 gallon tank. All golfs use the same fuel tank whether it be a gasser or a tdi. There is a space in the tank for an air bubble to compensate for the different volume of gas based on it's temperature, so your tank doesn't overflow when it's filled up and it gets hot outside. Diesel fuel does not expand nearly as much as gasoline when it gets heated, therefore the air bubble is not needed. VW actually puts a button inside the filler neck of the tdi's that, when depressed, allows the air to exit the tank allowing for almost two more gallons of fuel to be put in bringing the total capacity to somewhere around 16.4 gallons. I usually run till my low fuel light comes on, right around 700 miles, and it usualy takes about 15.5 gallons to fill it back up. Anyone learn something new today?

[enriquejcu]

Here's one:

How does the gas pump know when to shut off when I'm refueling my car? Increased air pressure in the tank?

[atomicalex]

You guys realize that that button in the fuel filler neck is to allow extra venting when using truck-diameter pumps, right? LOL, the stories that abound about that button are amazing.

[abawp]

WOW!! Learn something new everyday

[HarryHood]

Quote, originally posted by Rick1.8T »

Older (early 70s XKE) Jaguar's had a gas tank on each side, you had to fill each tank seperately. Not a Daimler product.

Actually, the British marque "Daimler" exists, separate and apart from "Daimler-Benz". Before about 40 years ago, they made their own cars. Now, they take Jaguars and gussy them up a bit and rebadge them "Daimler".

[Rick1.8T]

Quote, originally posted by HarryHood »

Actually, the British marque "Daimler" exists, separate and apart from "Daimler-Benz". Before about 40 years ago, they made their own cars. Now, they take Jaguars and gussy them up a bit and rebadge them "Daimler".

The car I was referring to was an XJ6, not XKE. I didn't know about British Daimlers, thanks for the correction. I feel so smart after reading all of the wisdom in this thread

[clklop1]

Quote, originally posted by BlueNDGold »

Are there more rules besides rule #1?

see sig

[IJM]

Quote, originally posted by enriquejcu »

Here's one: How does the gas pump know when to shut off when I'm refueling my car? Increased air pressure in the tank?

I think it may have something to do with electrical conductivity, but I'd like to hear from someone who really knows.

[Dubai Vol]

Quote, originally posted by IJM »

I think it may have something to do with electrical conductivity, but I'd like to hear from someone who really knows.

I don't KNOW, but I would design it to work on back pressure. A simple diaphragm pressure sensor in the line (inside the pump housing obviously) would "see" an increase in line pressure and trigger a cutoff. That could be made very sensitive, as they are. So while I am guessing, I would bet you a beer that's how it's done. Anyone care to enlighten us?

[Dubai Vol]

SO after sticking my neck out I found this:

http://www.straightdope.com/classics/a1_263.html

Not exactly what I was thinking, but at least there is a diaphragm pressure sensor involved!

[M.Diesel]

Quote, originally posted by atomicalex »

You guys realize that that button in the fuel filler neck is to allow extra venting when using truck-diameter pumps, right? LOL, the stories that abound about that button are amazing.

So you're saying it does not let you put in more fuel? I work at a dealership and have filled many a VW (gas and diesel) and have never been able to get more than ~14.4 gallons into the gassers while I regularly put over 15.5 into my diesel (I think the most ever was ~16.3). It does allow a quicker fill when open, needed for those jumbo spouts found on many diesel pumps, but it also allows more fuel into the tank.

[StarvinMarvin]

what is the octane rating of deisel?

Is it higher or lower than gasoline?

Is it because of this because of compression?

[20thgtiblack]

Quote, originally posted by JUSTINCASE1021 »

What in gods name is a HAZMAT and why cant you take it into a tunnel???

Hazardous Materials

[Devious-Veedub]

Anyone know what Audi Stands for??
It's an acronym...

[bWs]

Auto Union Deutschland Ingolstadt

[Devious-Veedub]

Good job!

[Dommer]

Do automatic transmissions know not to change gears while you're in a turn so as not to upset the balance of the car? If so, do they accomplish this by measuring lateral G's?

If both parts and labor of installation are higher for drum brakes, AND they don't work as well as disc brakes, why the hell did every car used to come with them?

[Langers]

Quote, originally posted by M.Diesel »

14.5 gallon tank. All golfs use the same fuel tank whether it be a gasser or a tdi.

Are you sure? I could have sworn that the R32 and 4-Motion Golfs have smaller tanks.

[Langers]

Quote, originally posted by Dommer »

If both parts and labor of installation are higher for drum brakes, AND they don't work as well as disc brakes, why the hell did every car used to come with them?

Because discs didn't exist?

[TurboWraith]

Quote, originally posted by StarvinMarvin »

what is the octane rating of deisel? Is it higher or lower than gasoline? Is it because of this because of compression?

diesel 'octane' is called cetane and the detonation resistance is less than that of gas. i dont feel like looking up what exactly it is right now. im tired.

ill try to find it in one of my old text books tomorrow maybe.

[M.Diesel]

Quote, originally posted by Langers »

Are you sure? I could have sworn that the R32 and 4-Motion Golfs have smaller tanks.

That could be..To be more specific, all mkIV fwd golfs that are available to the US market that I know of, use the same fuel tank.

[abawp]

What causes backfiring? More specifically, why does it backfire, and in extreme cases, light off un-burnt fuel, when you let off the gas?

[atomicalex]

Backfiring and postfiring are two different things. A true "backfire" is when the flame front manages to get out the intake tract and usually results in a destroyed air filter.

A postfire (there is a better name out there somewhere) occurs when uncombusted fuel hits the hot exhaust manifold and ignites. The fuel is usually uncombusted due to a misfire.

[GTIcharlie]

so what is VW Kool AID?

[StarvinMarvin]

Quote, originally posted by TurboWraith »

diesel 'octane' is called cetane and the detonation resistance is less than that of gas. i dont feel like looking up what exactly it is right now. im tired. ill try to find it in one of my old text books tomorrow maybe.

Rock on thanks. I'll try adn find a little mroe info too.

[shftat6]

Why do dump trucks and some other trucks say "Do not push" on the back?

What the hell would happen if you did?

[GLIGuy18]

what is underneath the floor carpet in cars? is is plastic??? metal?? wth is under there?!

[TurboWraith]

possible to bend or warp the bed and then they might not be able to dump their load as easily.

basicly, it can damage the truck, even though it looks strong.

[das boot]

Quote, originally posted by GLIGuy18 »

what is underneath the floor carpet in cars? is is plastic??? metal?? wth is under there?!

Under most carpets, there is some stick on sound deadening sheets and then metal.

[G-rocco]

Quote, originally posted by shftat6 »

Why do dump trucks and some other trucks say "Do not push" on the back?

My office is expanding, building into the (formerly) vacant lot next door - I asked the foreman about that while they were doing all the excavating.
Basically, the door isn't very strong. It's strong enough to hold inside whatever you mihgt put in, but if you pushed on it against the weight of the whole truck, it would crumple badly. He knew firsthand!

[cityjohn]

Quote, originally posted by G-rocco »

My office is expanding, building into the (formerly) vacant lot next door - I asked the foreman about that while they were doing all the excavating. Basically, the door isn't very strong. It's strong enough to hold inside whatever you mihgt put in, but if you pushed on it against the weight of the whole truck, it would crumple badly. He knew firsthand!

I guess that's like the NO STEP sign on airplane wings.

[bobturk]

Quote, originally posted by bWs »

Auto Union Deutschland Ingolstadt

Actually Audi is not an acronym, when August Horch left his namesake car company, which he created he was not allowed to reuse the name as the company continued on without him. He chose the name Audi because it is the latin equivelent to Horch, which means to hear in German. Eventually the companies merged into Auto Union which was represented by the 4 rings, the other company's names that were in Auto Union were retired and Audi was kept and used the old Auto Union logo.

[someguy123]

Do turbocharged cars run better in the cold winter? Like the B5 S4(heats up bad in other seasons)? Since it would reach < 0 celsius in the east.

[ZeroGravity97GT]

What does "ttt" mean?