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Sedans Cadillac CTS/CTS-V 2009 CTS
231 messages, Last post on Nov 23, 2009 at 1:06 PM
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Replying to: waffleman (Mar 03, 2009 8:10 am) I tried the 60 mph test. The average mpg did say 18 to 21 mpg traveling at aprx 60 mph on a flat road. OK, well, Hmmm? I have not had a long trip with the CTS09 yet doing primary highway driving. This will be my final test. With about 40 miles of straight highway driving the best I have been able to get is 13.3 MPG average on a tank .(203 miles to a tank of gas - 15.25 gals) I live in the Boston area and if you've driven here, you know it can be pretty much stop and go driving. Since I have bought the car I have calculated my average mpg for a tank to be from a low of 10.9 to high of 13.3 mpg. Well what to I do now. Live with it? My wife drives a 02 Jeep Cherokee Larado and appears to get the same or better city mileage. It appears other CTS owners are getting better mileage, so I just want to make sure I didn't get a  . The sticker lists 17 MPG city. Let's say I get 12.4 MPG (conservative driving). Is this difference typical?. Is there anything I can suggest for the dealer to check? Do Escalade driver's get 5 MPG?  I think the car is really sharp, I'm just a little bummed that it seems I bought a gas hog. ;( -s |
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Replying to: blackcadillac (Mar 10, 2009 5:35 am) local stop and start driving i am getting 19 to 20 mpg. highway driving at 60 mph get 30 mph,75 mph highway driving drops to 26 mph. joey000245 |
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Replying to: prophet (Mar 09, 2009 4:40 pm) |
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Replying to: blackcadillac (Mar 10, 2009 5:35 am) Winter is really hard on gas mileage, mostly because engines rarely get a chance to warm up (and that means the oil, not the coolant) completely. I drove a car in Alberta for awhile that had an oil temperature gauge, and it can take an hour or more to get the oil to a stable temperature when it's cold out, and even at that, the oil temp is lower than when the air temp is higher, as in the summer. Add to that the fact that "winter-blend" fuels rarely do anything positive for MPG. I've done a fair amount of long-distance driving out here in the wide-open west and watching the average MPG number continue to go up for an hour or two on long flat stretches in Nevada, has be convinced that getting too worked up over poor gas mileage in the winter where it gets really cold is not a good plan. See what happens next summer on a long trip. |
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Replying to: blackcadillac (Mar 10, 2009 5:35 am) |
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Replying to: blackcadillac (Mar 10, 2009 5:35 am) |
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Replying to: blackcadillac (Mar 10, 2009 5:35 am) I have had 4 Eldorados and 2 CTSs and all got the EPA MPG with this Instant MPG test and they all would show 60-70 MPG after taking foot off the gas and coasting. More miles, summer gas, etc, will help, but it sounds like you are so far below the highway EPA, that something is wrong. After this test, you have some facts to discuss with the dealer. Talking with the dealer about average MPG and city MPG, isn't going to get much done. You could have something weird, like a brake rubbing, especially if it doesn't get good MPG on instant when coasting. Check your tire pressure. |
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Replying to: blackcadillac (Mar 10, 2009 5:35 am) |
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Replying to: artmbgolf (Mar 13, 2009 9:57 am) And,.. yes going down hill coasting it would shoot up to 70MPG on the instant read out. Tire pressure seems in line. I'm still getting the same mpg. Nothing I do seems to change. If I drive as conservative as possible, the best is 13 MPG. If I get on it and use the sport mode, I'm looking at 10 or 11 MPG. I'm going to take this baby back to the dealer again. I have notice other post regarding rough idle. I also have the same issue. For a 40k plus car, I am shocked how this thing sounds. I forget about it right up until I get out of the car while it's running. It always makes me double take and think something is wrong. I don't mean to whine..... I think the car is sharp and like a lot of the internal features, but I'm beginning to think I should have done more research before buying. I'll also try to find a gas station that isn't 10% ethonol. I haven't been paying attention to that. Thanks for all the comments and suggestions. best, -s |
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Replying to: blackcadillac (Mar 15, 2009 6:57 pm) It does sound like something is not right with your car. Plenty of others have reported expected EPA MPG. Stop and go driving can be bad, but highway cruise should be better than you are getting. Sport mode would hurt gas mileage. |
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