Curb weight includes what amount of fuel in the tank?
07-20-2009, 06:43 AM
#1
Melting Slicks
Thread Starter
Curb weight includes what amount of fuel in the tank?
What amount of fuel in the gas tank does curb weight account for? With a gallon weighing roughly 8 lbs the car can weigh quite a lot more or less depending on what level the tank is assumed to be at. About 144 pounds heavier with the tank full than empty.
07-20-2009, 07:52 AM
#2
Melting Slicks
I would presume that curb weight includes all fluids normally carried on-board: fuel, oil, coolant, windshield washer, power steering, transmission, and differential. It should not include a driver, passenger, or rated cargo.
07-20-2009, 08:16 AM
#3
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07-20-2009, 09:32 AM
#4
Race Director
Published "Curb Weight" is at best a guess, at worst just another advertizing gimmick. Every option changes the weight of the car, there is no one curb weight for a C6.
If you really want to know the weight of the car, take it to a specialist alignment shop and have it "Corner Weighted".
My '08 Coupe was 3266#'s with aprx 6 gallons of gas (all other fluids full) so aprx 3230#'s for my '08 3LT, A6, Z51, Nav. Maybe subract a few pounds for books, Manuals, tools, etc.
My '05 Coupe was 3251#'s with aprx 3 gallons of gas (all other fluids full) so aprx 3236#'s for an '05 3lt, M6, Z51, Nav. Maybe subtract a few more pounds since I had more tools in the ''05.
What was interesting was the Front to rear distribution; The '05 M6 was 53% F, 47% R, the '08 A6 was 51% F, 49% R.
If you really want to know the weight of the car, take it to a specialist alignment shop and have it "Corner Weighted".
My '08 Coupe was 3266#'s with aprx 6 gallons of gas (all other fluids full) so aprx 3230#'s for my '08 3LT, A6, Z51, Nav. Maybe subract a few pounds for books, Manuals, tools, etc.
My '05 Coupe was 3251#'s with aprx 3 gallons of gas (all other fluids full) so aprx 3236#'s for an '05 3lt, M6, Z51, Nav. Maybe subtract a few more pounds since I had more tools in the ''05.
What was interesting was the Front to rear distribution; The '05 M6 was 53% F, 47% R, the '08 A6 was 51% F, 49% R.
07-20-2009, 12:50 PM
#5
Safety Car
gasoline is about 5.93-6.42 lbs per gallon,depending on type/temp diesel is about 8lbs per.....
Last edited by CMY SIX; 07-20-2009 at 12:53 PM.
But I don't think they include a full tank of gas.
07-20-2009, 12:58 PM
#7
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Published "Curb Weight" is at best a guess, at worst just another advertizing gimmick. Every option changes the weight of the car, there is no one curb weight for a C6.
If you really want to know the weight of the car, take it to a specialist alignment shop and have it "Corner Weighted".
My '08 Coupe was 3266#'s with aprx 6 gallons of gas (all other fluids full) so aprx 3230#'s for my '08 3LT, A6, Z51, Nav. Maybe subract a few pounds for books, Manuals, tools, etc.
My '05 Coupe was 3251#'s with aprx 3 gallons of gas (all other fluids full) so aprx 3236#'s for an '05 3lt, M6, Z51, Nav. Maybe subtract a few more pounds since I had more tools in the ''05.
What was interesting was the Front to rear distribution; The '05 M6 was 53% F, 47% R, the '08 A6 was 51% F, 49% R.
If you really want to know the weight of the car, take it to a specialist alignment shop and have it "Corner Weighted".
My '08 Coupe was 3266#'s with aprx 6 gallons of gas (all other fluids full) so aprx 3230#'s for my '08 3LT, A6, Z51, Nav. Maybe subract a few pounds for books, Manuals, tools, etc.
My '05 Coupe was 3251#'s with aprx 3 gallons of gas (all other fluids full) so aprx 3236#'s for an '05 3lt, M6, Z51, Nav. Maybe subtract a few more pounds since I had more tools in the ''05.
What was interesting was the Front to rear distribution; The '05 M6 was 53% F, 47% R, the '08 A6 was 51% F, 49% R.
07-20-2009, 01:08 PM
#8
Drifting
You could go to your local track, the ones in STL have the scale you drive on for your vehicle weight with driver then simply subtract yourself.
07-20-2009, 01:12 PM
#9
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Water is 8 lbs/gal. Gas is about 6 lbs/gal
07-20-2009, 01:28 PM
#11
Safety Car
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According to Dan Maslic in his book "Master EFI Tuner" regular grade gas weighs 6.25 lbs per gal @ 72* and Premium grade weighs 6.35 lbs per gal at the same temp. 
( Yea, I know, BFD)
BJK
( Yea, I know, BFD)BJK
Last edited by 07MontRedcp; 07-20-2009 at 01:37 PM.
07-20-2009, 01:44 PM
#12
Team Owner
My understanding is that curb weight was with 4 gals of gas. Don't have anything to back up that statement, just my failing memory.
edit: doing a google, every source said that the curb weight included a full tank of fuel.
edit: doing a google, every source said that the curb weight included a full tank of fuel.
Last edited by JoesC5; 07-20-2009 at 01:47 PM.
07-20-2009, 02:31 PM
#13
Drifting
Curb weight is the weight of the vehicle full of fluids but without driver, passenger, or any cargo.
Last edited by acrace; 07-20-2009 at 02:34 PM.
07-20-2009, 03:03 PM
#14
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Rule of thumb
Gas weighs about 6lbs btw.... http://wiki.answers.com/Q/How_much_d...gasoline_weigh
BTW you can use for Gasoline: 6 #/gal, for Oil: 7 #/gal and for water: 8 #/gal. Those are the values we used to use back in the day for calculating take off weights when I was flying. Those are the single easy to remember digits and close enough to not get into trouble trying to take off with a too heavy airplane.
Last edited by jrnorman; 07-20-2009 at 03:14 PM.
07-20-2009, 03:55 PM
#17
Melting Slicks
07-20-2009, 06:56 PM
#19
Drifting
07-20-2009, 07:04 PM
#20
Race Director