How many MPG are you getting in your N* Seville/Eldo?

[cl1986]

94 Eldo standard no ESC or ETC. Using premium 91/92 octane. Going 72-78 mph get 26MPG without any wind, 24 MPG with a South Dakota wind almost any direction except with the car. Driving with the wind gets better, up big hills on interstate kills it.

60-70 mph get about 28 MPG and know i could get 30 if i could drive 55-60 mph but that aint going to happen.

There is a 2 mile stretch where i set the cruise at 55 and the INST reads 32-36 the whole way, so i would guess 30 if it was a longer stretch.

Im going to try 40-45 psi in the front tires and see what happens.

[I~LUV~Caddys8792]

well i just wanted to compare my 1992 Sedan deVille 4.9 with the newer more fuel efficent 4.6 N* and with pure city driving i get about 15 mpg when i drive my car for long enough to get it into closed loop operation, if i dont drive it very long, i get about 12-13, which is the same as my LT1 Roadmaster when it was in closed loop, i remember my best weekly mpg being 13.9 and lowest was about 11. And, to answer Vlrench's question; nightwolf's 1979 Sedan deVille with the 4bbl 425cid V8 gets 11mpg and i believe that the '75-76's get around 8-9 mpg. (god am i glad i didnt buy one of those.)

[davesdeville]

Originally Posted by I~LUV~Caddys8792

i believe that the '75-76's get around 8-9 mpg. (god am i glad i didnt buy one of those.)

I recently read that a guy managed 14 city perfectly tuned, Q-Jet carb'd 76 Deville. They make great second "weekend" cars..

[bige's "95 seville]

i got a 95 sls wit 113k took cat off and got a resinator. i deliver pizzas and i get about 17.5+ mpg . i took it up on the highway after i got my plugs in and after about thirty minutes of driving it shot up to 25mpg. next time i goto tallahassee i'll see if it gets up close to thirty

[STS 310]

12 in LA. Need a tune up. Way too heavy on the pedal light to light.

Gas is going to crack prices. My STS is a fiend.

[howiepea]

I just got my 2000 STS 4 months ago. So far the best MPG I have seen is 14.5 in the city. Although I don't regularly use premium fuel...

[FSchuett]

Hello,
I´m driving my ´95 Eldo with 16,8 MPG (14 l/100 km) here in germany.
16 MPG at the "Autobahn" (800 km in 4,7 hours)

With best wishes from Germany

Frank

[davesdeville]

16 isn't bad for 105mph.

How come a lot of people in other countries use a comma instead of a period when denoting decimals?

[anthonyseldorado]

I have a 2001 ESC no mod 16.9 city use 93 octane shell gas, 45,000 on odemeter

[JC316]

95 Seville SLS 155,XXX. City stop and go 19-20 MPG, Highway 27-28 if it's pretty flat.

[Ur7x]

2002 STS 50,000 Miles. Almost all city miles A/C on AUTO all of the time. Left foot really heavy. Lots of WOT.... Not a bit of black smoke out of the back of my blue bomber... Love that sound and feeling! Oh yeah in spite of this...

17.8 MPG per the computer... Amazing!

[mrnextel]

This is my first post here. To be honest I recently bought a 1996 eldorado in west palm beach and drove it all the way back to Pittsburgh pa. Total of about 1200 miles, I typically had the cruise set at 75mph I averaged 24 mpg. Allot of the claims of 25+ I find hard to believe. The car seems to run pretty clean, except at startup, she stinks a lil. runs smooth, I did run 3 bottles of chevron fuel system cleaner through it during the trip, I now read that it is bad to use these products, guess it harms the fuel pump.



im really frightened after reading allot of the posts on here, I cannot believe the problems these Cadillac’s have, I mean a $45k-$55k car, you would think they would be allot more reliable. But I did buy the car right.

It’s a 96 pretty clean with 49k on the odometer, carfax clean, service records show 2 generator replacements, and I paid $4700. Are these cars really that bad? Time to keep driving my 4.6 thunderbird? This has been trouble free for 150k!

[Tombo47]

I get 32 inst MPG doing 50 in the turnpikes on LI. I also used Chevron fuel system cleaner and i get 3 mpg better! I run only 93 octane. I never ehard anythign about chevron doing harm to the car...

[STS1320]

96 STS 72,xxx miles. 19 city 28 highway. A little lower now cause i went to 87 oct cause of gas prices

[rockytfox]

16.0 mpg - mostly city. This is also a car that has a defective catalytic convertor, original spark plugs and wires with 88000 miles on it and a brand new tranny.