Cadillac Owners Forum banner

1 - 13 of 13 Posts

·
Registered
2007 DTS Luxury II
Joined
·
9 Posts
Discussion Starter #1 (Edited)
I am looking into a 1976 Fleetwood Brougham and a 1995 Fleetwood Brougham. I have been able to find the guestimated gas mileage figures for the '95, but not the '76. I understand they both run fine on regular octane gasoline. (I have not physically seen the '76. I'm not sure if it is the fuel injected model or not.)

Has anyone here had experience with both, or maybe some have had experience with either of them, so that they could tell me what mileage I might expect on the highway? I know the warnings about potential issues around taking a car as old as the '76 on a road trip, but for sake of this question let's assume it is in good condition and can take 3 or 4 trips per year of 300 to 400 miles without much worry.

Thanks.

Bookman53
 

·
Super Moderator
2014 ELR
Joined
·
10,043 Posts
About 14mpg in the 76, and 23-26 with a 95 depending on rear end ratio. Approx, of course, depending on terrain, temp, speed, etc.
 

·
Registered
1990 Brougham, 1990 Brougham d'elgance 1979 Coupe
Joined
·
1,196 Posts
My 76 Eldorado got around 12 MPG, My 79 Fleetwood got around 15MPG, My 90 Brougham gets around 18 MPG.

Hope that helps.
 

·
Registered
1980 FBC
Joined
·
3,198 Posts
I had a '76 CDv for a while. It got 15 MPG with 90% highway driving not over 60 MPH.

My experience is 70s Cadillacs do really well on economy with a light foot and not exceeding 60 MPH cruising speed. Remember, the national speed limit in the States was 55 back then.

Cruising at 70 will lower the mileage to dismal figures on those cars. This is one area the newer cars just plain bury the older ones.
 

·
Registered
Past: 95 Fleetwood, 91 Brougham. Now: 92 Lexus SC300
Joined
·
5,418 Posts
My 1995 Fleetwood did 23-24mpg highway, and I usually drive between 75-80mph. In mixed driving it was about 17-18mpg. Sad thing is that the little 3 liter inline six in my Lexus gets almost the same gas mileage and that car weighs 1000lbs less than my old Cadillac, and it uses premium fuel.

As for the old 1975 Caddy, I wouldn't even try and calculate the gas mileage cause it will just make you depressed.
 

·
Registered
1995 SEDAN DEVILLE-4.9 & 1978 SEDAN DEVILLE-425
Joined
·
1,673 Posts
My 1995 Fleetwood did 23-24mpg highway, and I usually drive between 75-80mph. In mixed driving it was about 17-18mpg. Sad thing is that the little 3 liter inline six in my Lexus gets almost the same gas mileage and that car weighs 1000lbs less than my old Cadillac, and it uses premium fuel.

As for the old 1975 Caddy, I wouldn't even try and calculate the gas mileage cause it will just make you depressed.
Depressed for sure! I don`t even calculate the mileage on my `78 Deville and don`t want to.
All I know is it runs smooth and with the big 27 gallon tank it always seems I get good mileage.
 

·
Registered
1980 FBC
Joined
·
3,198 Posts
70s Cadillacs were outstanding for economy at the time. Dunno why anyone would not want to know if their car was running right.

This excludes 1972 and maybe '73/4 which did some strange stuff with the valve timing. The '72 sure ran better than a '71 though.
 

·
Registered
1995 SEDAN DEVILLE-4.9 & 1978 SEDAN DEVILLE-425
Joined
·
1,673 Posts
I had a '76 CDv for a while. It got 15 MPG with 90% highway driving not over 60 MPH.

My experience is 70s Cadillacs do really well on economy with a light foot and not exceeding 60 MPH cruising speed. Remember, the national speed limit in the States was 55 back then.

Cruising at 70 will lower the mileage to dismal figures on those cars. This is one area the newer cars just plain bury the older ones.
Agreed---70 mph or above and the body aerodynamics come more in to play.
The `70`s Caddy`s had great classic body styling but they were "not" air slippery.
That said I still love the body style of my `78 Deville more than my `95 Deville.

----------

I had a '76 CDv for a while. It got 15 MPG with 90% highway driving not over 60 MPH.

My experience is 70s Cadillacs do really well on economy with a light foot and not exceeding 60 MPH cruising speed. Remember, the national speed limit in the States was 55 back then.

Cruising at 70 will lower the mileage to dismal figures on those cars. This is one area the newer cars just plain bury the older ones.
Agreed---70 mph or above and the body aerodynamics come more in to play.
The `70`s Caddy`s had great classic body styling but they were "not" air slippery.
That said I still love the body style of my `78 Deville more than my `95 Deville.
 

·
Registered
1980 Eldorado, 1974 Talisman, 2004 Volvo C70, 1975 Fleetwood 'd Elegance
Joined
·
7,963 Posts
Like they always say....if you have to ask....you can't afford it.

Go with the 95.:D
 

·
Registered
1980 FBC
Joined
·
3,198 Posts
My '77 CDV would regularly get over 19 MPG on a steady 60 MPH highway roll with the AC on.

Cruised up the QEW to Toronto at 70 MPH and it dropped down to 14 and change.

This was back in 1985.
 
1 - 13 of 13 Posts
Top