hosser Posted August 13, 2004 Report Share Posted August 13, 2004 I have not done it sense ive got my cutty, but does anyone have a good estimate of its highway mileage, in michigan an upcoming warp tour is going on about 300 miles from me and want to get a good idea how much gas im going to burn up. Quote Link to comment Share on other sites More sharing options...
THe_DeTAiL3R Posted August 13, 2004 Report Share Posted August 13, 2004 I get about 240miles a tank (before I get scared that the needle is too low).. my 2.8 is a gas hog. Tank and a half each way maybe? Quote Link to comment Share on other sites More sharing options...
herb427sc Posted August 13, 2004 Report Share Posted August 13, 2004 My 92 5 speed got close to 30 mpg on trips. My 93 automatic gets about 21 mpg stop and go around town. Quote Link to comment Share on other sites More sharing options...
99RegalGS Posted August 13, 2004 Report Share Posted August 13, 2004 I average 26mpg in my Cutlass. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 13, 2004 Report Share Posted August 13, 2004 overal average in my 95 is 20.4 Â we did 29.8 to the shore, highway, and its about 18.4 arouynd town. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted August 13, 2004 Report Share Posted August 13, 2004 i do a mix of city and highway driveing and i can usually average around 24mpg on long trips i caan get around 25/26mpg Quote Link to comment Share on other sites More sharing options...
GP1138 Posted August 13, 2004 Report Share Posted August 13, 2004 I get about 240miles a tank (before I get scared that the needle is too low).. my 2.8 is a gas hog. Tank and a half each way maybe? Â Before I re-helicoiled my rear center spark plug hole, my 2.8 was a hog, getting about 250 miles per tank on the highway, now it gets around 300 miles a tank, so not too awful bad. Quote Link to comment Share on other sites More sharing options...
THe_DeTAiL3R Posted August 13, 2004 Report Share Posted August 13, 2004 I get about 240miles a tank (before I get scared that the needle is too low).. my 2.8 is a gas hog. Tank and a half each way maybe? Â Before I re-helicoiled my rear center spark plug hole, my 2.8 was a hog, getting about 250 miles per tank on the highway, now it gets around 300 miles a tank, so not too awful bad. Â I get around 30-35MPG going 50-60MPH, faster than that and it goes down. I've gotta just fill it up, go on the 401 and put it on cruise and see how much I can really get.. I'm sure there are sensors etc. that could use replacing, but the CAR will be replaced soon enough by the 95 which I know gets much better MPG according to the DIS. Quote Link to comment Share on other sites More sharing options...
phantomshado Posted August 13, 2004 Report Share Posted August 13, 2004 I get 30 mpg on the highway, its pretty rad. can anyone here calculate the most efficient speed for these cars? Â I have a 3100, and after 143K miles, its still running like a top. Quote Link to comment Share on other sites More sharing options...
WhiteOut Posted August 13, 2004 Report Share Posted August 13, 2004 My 95' 3.4 DOHC cutlass gets 21 mpg average (mix of city and highway), and around 25-26 mpg on the highway (70-80mph cruising) regardless of whether the top is up or down. Â A tank usually nets me about 320 miles worth of driving on average, but I've stretched that out to the 340's before. Quote Link to comment Share on other sites More sharing options...
SloMo94 Posted August 13, 2004 Report Share Posted August 13, 2004 Now I don’t have a 3.4 but my buddy has a Z-34, it’s getting around 25 mpg. Of course that’s all country driving @ 55-85 depending on how nice it’s out. My 3100 is getting really good numbers as long as I keep it between 1700-2500, 50/50 mixed driving = 29. Straight highway= 34, City=24. Quote Link to comment Share on other sites More sharing options...
loominaz34 Posted August 13, 2004 Report Share Posted August 13, 2004 My dad drove my Z34 from grand rapids michigan to central pennsylvania on 1 tank of gas on several occasions at 70 mph-- about 31 MPG. Quote Link to comment Share on other sites More sharing options...
patgizz Posted August 13, 2004 Report Share Posted August 13, 2004 mine averaged 29mpg highway with no converter lockup Quote Link to comment Share on other sites More sharing options...
Heza Posted August 13, 2004 Report Share Posted August 13, 2004 my '96 guzzles gas. 16 mph average city and 26 highway Quote Link to comment Share on other sites More sharing options...
joey b Posted August 13, 2004 Report Share Posted August 13, 2004 I'm dead on with Heza. Quote Link to comment Share on other sites More sharing options...
Guest Gp crazy Posted August 14, 2004 Report Share Posted August 14, 2004 I have a an 90 STE 3.1 and if i drive it i can get on avg. 24 MPG's but if my wife drives it gets 15.3 Mpg's now she has a led foot. Quote Link to comment Share on other sites More sharing options...
Kalgorn Posted August 14, 2004 Report Share Posted August 14, 2004 I get about 16mpg city/highway mixed. The best mileage I've had was 19 mpg and that was quite a bit of highway. Hopefully with this injector cleaner I'll get some better gas mileage... Quote Link to comment Share on other sites More sharing options...
john99gtp Posted August 15, 2004 Report Share Posted August 15, 2004 I get about 16mpg city/highway mixed. The best mileage I've had was 19 mpg and that was quite a bit of highway. Hopefully with this injector cleaner I'll get some better gas mileage...   wow......IMHO thats a bit low   On my 3800, i can go from 22 to about 30, depending on conditions.   Idle speed for me is between 55 and 60.....RPMs right around 1500, with it like that gas mileage shoots through the fucking roof.  Sorry, not even close to the engine u asked for, but others were throwing it in too   John Quote Link to comment Share on other sites More sharing options...
stilesr9167 Posted August 27, 2004 Report Share Posted August 27, 2004 I get about 400-450 miles to the tank on my 92 lumina z with a 5 spd. I put about 40k on my car in about a year so i have plenty of opportuneties to test it. when i got the car it got like 22. Quote Link to comment Share on other sites More sharing options...
slick Posted August 27, 2004 Report Share Posted August 27, 2004 Man, you guys are lucky......... Try driving my car around. You'll be happy you have a 2.8 hog. Quote Link to comment Share on other sites More sharing options...
cutlsp Posted August 27, 2004 Report Share Posted August 27, 2004 my 2.8 gets better milage when i don't race it. (which is hard not to do because its a weak motor) Quote Link to comment Share on other sites More sharing options...
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