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Gas milage

Started by spolij, February 12, 2019, 08:18:57 PM

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spolij

66 De ville I get about 13 mpg on the highway. High test. Usually about $2 gal.

60eldo

We here in canada pay about 4$ gal in your money, and we sell our gas to you
Jon. Klu

Scot Minesinger

These 1960's and 1970's Cadillacs love fuel and they are worth it. 
Fairfax Station, VA  22039 (Washington DC Sub)
1970 Cadillac DeVille Convertible
1970 Cadillac Sedan DeVille
1970 four door Convertible w/Cadillac Warranty

Cape Cod Fleetwood

Quote from: 60eldo on February 12, 2019, 10:22:52 PM
We here in canada pay about 4$ gal in your money, and we sell our gas to you

Um, yeah not really.
Instead of giving Canadians a break with extra fuel production and reducing your costs, Canada is exporting fuel to China and still taxing its subjects back to the stone age with what's left. Canada is also sending oil through its Keystone XL (FINALLY) to the deep south, where it gets exported. Kansas is pumping more oil now than Venezuela. US oil and gas production has never, ever, been so high. We're drilling finally in Anwar and off the coast. America is producing more crude and natural gas than any other country in the world. So why am I still paying $2.69 for a gallon of regular? TAXES.

It SHOULD be cheaper to fuel our Cadillacs, our collective governments are in the way with state and federal taxes.

\m/
Laurie
There are 2 kinds of cars in the world, Cadillac and everything else....

The Present -1970 Fleetwood Brougham

The Past -
1996 Deville Concours
1987 Sedan De Ville "Commonwealth Edition"
1981 Coupe De Ville (8-6-4)
1976 Sedan De Ville
1975 Sedan De Ville

The Daily Driver and work slave -
2008 GMC Acadia SLT *options/all

cadillacmike68

Quote from: Cape Cod Fleetwood on February 13, 2019, 01:24:14 AM
Um, yeah not really.
Instead of giving Canadians a break with extra fuel production and reducing your costs, Canada is exporting fuel to China and still taxing its subjects back to the stone age with what's left. Canada is also sending oil through its Keystone XL (FINALLY) to the deep south, where it gets exported. Kansas is pumping more oil now than Venezuela. US oil and gas production has never, ever, been so high. We're drilling finally in Anwar and off the coast. America is producing more crude and natural gas than any other country in the world. So why am I still paying $2.69 for a gallon of regular? TAXES.

It SHOULD be cheaper to fuel our Cadillacs, our collective governments are in the way with state and federal taxes.

\m/
Laurie

What's really sad is the VZ has the LARGEST oil reserves in the world...
Regards,
"Cadillac" Mike

Roger Zimmermann

Right now, we pay in Switzerland about $ 6.00 for a gallon of fuel. So why are you complaining? I don't remember the percentage of taxes on that price; it's more than 60%. This is however the price we have to pay to get one of the best maintained road system in the world. Without fuel taxes, the roads would not be so good or they should be financed with a different method like taxes on the revenue.
I may add that the fuel in Switzerland is not the most expensive in Europe.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham (sold)
1972 Coupe de Ville
2011 DTS
CLCMRC benefactor #101

Marty Michaels

well that what happens under socialism.I 'm concerned for us here in the U.S.if we let these lefty get this green new deal going we might have a black market for fuel then what? Marty
Marty Michaels
1947 6269
1941 6019s
CLC#26833

Dan LeBlanc

Quote from: Cape Cod Fleetwood on February 13, 2019, 01:24:14 AM
Um, yeah not really.
Instead of giving Canadians a break with extra fuel production and reducing your costs, Canada is exporting fuel to China and still taxing its subjects back to the stone age with what's left. Canada is also sending oil through its Keystone XL (FINALLY) to the deep south, where it gets exported. Kansas is pumping more oil now than Venezuela. US oil and gas production has never, ever, been so high. We're drilling finally in Anwar and off the coast. America is producing more crude and natural gas than any other country in the world. So why am I still paying $2.69 for a gallon of regular? TAXES.

It SHOULD be cheaper to fuel our Cadillacs, our collective governments are in the way with state and federal taxes.

\m/
Laurie

Actually . . .

The Irving Oil refinery here in Saint John, NB about a 1/4 mile from my office (I can see it from my window and can here the alarm tests every Wednesday afternoon at 3:45pm it's that close) exports the vast majority of the fuel it produces down the Eastern Seaboard.  They sell more fuel in the US in bulk than they do in their own network here in Canada.
Dan LeBlanc
1977 Lincoln Continental Town Car

Scot Minesinger

Yes, all Countries and jurisdictions tax unfairly and the price of gasoline disparity form place to place is illogical.  Back to Cadillacs and gas mileage, the original topic.

Who cares what the mileage is unless it is indicative of a mechanical problem?  We drive these beautiful classics very seldom and doing basic math here at 3,000 miles per year and 12.5 mpg, that is 240 gallons @ $3.00/gal = $720 per year.  That is an average of $60 per month for a hobby!  As you know with insurance, and especially upkeep and improvements, this is not much of a cost impact.  If your Cadillac gets 15 mpg or 10 mpg, the cost ranges $75 to $50 per month - who cares?  Call me an elitist if you want to for not caring about whether my monthly gas bill varies $25 per month for my hobby car.  It is interesting to discuss mileage, but not because we actually concerned about the financial impact on our lives.

BTW, premium gas should be used on any high compression Cadillacs 1970 or earlier (back to mid 1950's).  And premium gas does not go bad as fast as regular so it can be in your gas tank longer.  I would use premium in any Cadillac 1979 and older if it were me.

An interesting item on gas mileage is why is it that my 1985 Caprice V-8 RWD and my 1995 Cadillac RWD got about 25 mpg on the highway and modern cars now with high powered V-6's and V-8 cars get about the same 30 years later?  I just hope we can continue to buy gas decades from now when EV's are mainstream and the dominant means of personal transportation.
Fairfax Station, VA  22039 (Washington DC Sub)
1970 Cadillac DeVille Convertible
1970 Cadillac Sedan DeVille
1970 four door Convertible w/Cadillac Warranty

spolij

Thank you Johnny

Ok so Canada's government is screwing it's citizens.

What is your mpg:(???????

signart

The only tank to tank driving I have done in my '53 coupe was a 400 mi. trip and 400 mi. back to and from Moultrie, Ga. swap meet. I was running with a group of rodders with modern drive train and we passed everything on the road going down, got around 15-16 mpg.
Coming back solo & rain (thank God radials) I ran 65 to just under 70 because of rain & just was running my own pace anyway and got a solid 19 on one tank full I checked closely.
The car at that time was not running it's best as I discovered longer into ownership. My plug wires and tuning were far from optimal and my coil wire was corroded inside the coil end. As I changed wires the last being the coil wire, was just loosely inserted bare wire into the coil.
I seriously think I could pull 20 mpg with a careful right foot, once I get off this mountain and down I-75.
Art D. Woody

spolij

Wow great millage for a 53. My car is going in the shop this week. Hopefully i'll get better. My deville is 4400 lbs. whats yours?

"Cadillac Kid" Greg Surfas 15364

John,
13 is an average number for your car (that's about what I got with mine) with the 3,21:1 rear end and switch pitch trans. When I changed to a '67 intake and QJ I was able to keep it in the primaries and the mileage picked up a bit to around 16.
Greg Surfas
Cadillac Kid-Greg Surfas
Director Modified Chapter CLC
CLC #15364
66 Coupe deVille (now gone to the UK)
72 Eldo Cpe  (now cruising the sands in Quatar)
73 Coupe deVille
75 Coupe deElegance
76 Coupe deVille
79 Coupe de ville with "Paris" (pick up) option and 472 motor
514 inch motor now in '73-

spolij

Interesting.  67 intake and QJ I was able to keep it in the primaries" Thank you.
Wish i knew what you were saying.  ???

"Cadillac Kid" Greg Surfas 15364

John,
In 1967 Cadillac upgraded the 429 motor by changing the intake manifold and installing a Quadrajet Carburetor (QJ). This carburetor has small primary throttle bores and humongous secondaries.  The primaries are intended for low power settings and when you need more power you push on the accelerator pedal and the secondaries open up giving the engine something like 780 CFM of air flow, vs. the 625 CFm the 1966 carburetors are capable of.
That said, through judicious use of the gas pedal and setting up the QJ to do so, most of your driving can be on the primary side of the carb and greater economy can be achieved.
Greg Surfas
Cadillac Kid-Greg Surfas
Director Modified Chapter CLC
CLC #15364
66 Coupe deVille (now gone to the UK)
72 Eldo Cpe  (now cruising the sands in Quatar)
73 Coupe deVille
75 Coupe deElegance
76 Coupe deVille
79 Coupe de ville with "Paris" (pick up) option and 472 motor
514 inch motor now in '73-

cadillacmike68

Quote from: Marty Michaels on February 13, 2019, 06:03:57 AM
well that what happens under socialism.I 'm concerned for us here in the U.S.if we let these lefty get this green new deal going we might have a black market for fuel then what? Marty

green new pipe dream?  :P Let all of them be the first to bike to and from congress and take a wood burning train back and forth to their districts.
Regards,
"Cadillac" Mike

cadillacmike68

Consumer reports reviewed the 1968 Sedan deVille in their April 1968 issue. I have a full original copy. The measured fuel economy was over 16mpg at 45 MPH if I remember correctly, dropping off as the steady speed increased. Their estimate was 8-12MPG in mixed driving which is what I get. I never measured it on a strictly highway trip, but regularly get over 10 on mostly highway, but even that is not accurate as a measured drive.

If I remember CR uses (or used to use) a clear glass tank hermetically sealed to the gas tank fill pipe marked off so a measured fuel consumption can be made without adding fuel to the tank.
Regards,
"Cadillac" Mike

rajeevx7

Quote from: spolij on February 12, 2019, 08:18:57 PM
66 De ville I get about 13 mpg on the highway. High test. Usually about $2 gal.

Not bad Mate! Can’t tell if you are complaining...or happy  ??? I’d be happy. My every-day auto gets 13mpg too, and at this point it’s just whatever :P

signart

Quote from: spolij on February 13, 2019, 10:45:59 AM
Wow great millage for a 53. My car is going in the shop this week. Hopefully i'll get better. My deville is 4400 lbs. whats yours?
The curb wt. about the same, no a/c, no p.w. nor seats, so just under 4400 lbs.
Art D. Woody

"Cadillac Kid" Greg Surfas 15364

At the risk of starting another "culture war", Taking a high speed train on a (say) 350 mile intercity trip would be great.
To drive would take something like 5+ hours.  Of course the plane would only take an hour, but add at least the 2 or so hours needed on each end to get to the airport, check bags and get through security, and then pick up your bags at the other end you have a total of 5 hours.
High speed train like the Shinkansen traveling at about 160 MPH would get you there in a little over 2 hours.  Even the cheapest train seat is more comfortable than first class air these days.
Much of the rest of the world already knows this.  I do not believe anyone is advocating eliminating the automobile, but I sure would like a high speed light rail between here (San Antonio) and Dallas.  Those folks on the East Coast already have this and STILL have their cars.
Greg Surfas
Cadillac Kid-Greg Surfas
Director Modified Chapter CLC
CLC #15364
66 Coupe deVille (now gone to the UK)
72 Eldo Cpe  (now cruising the sands in Quatar)
73 Coupe deVille
75 Coupe deElegance
76 Coupe deVille
79 Coupe de ville with "Paris" (pick up) option and 472 motor
514 inch motor now in '73-