Prius (2004-09) :: Mileage Dropped After Oil Change
I have an 05 Prius that I bought used. It has 59K miles on it. Recently I took it to the dealer for an oil change. They told me it didn't need an oil change, but did need an air filter. Afterwards, the mileage dropped from about 47 around town to about 42. Had the oil changed a week later, and the mileage is now about 40 around town. The dipstick when cold shows a little above the full mark.
View 15 RepliesPrius (Gen 2) Fuel :: 2009 - Mileage Dropped After Tire Rotation
I had my the tires on my 2009 Prius rotated a while back. My car has 36,000 miles on it all on the original tires. It seems like my mileage dropped a bit since doing that. There are so many variables in mileage though, it is hard for me to pin it down to that. Could tire rotation affect my mileage?
View 4 RepliesPrius (Gen 3) Fuel :: Mileage Has Dropped To 35 MPG
2011 Prius for wife. Mileage has always been upper 40s to low 50s until the last week or so, now she is seeing 35 mpg displayed.
I have asked for a check at fill up. I just pulled the car out to wash it and noticed the engine came on right away, same when I put it back into the garage. In the past we would get part way down the driveway before the engine came on. Also did a code check and no codes found
What are the approximate outside air temps? 40s am 70s pm.
Prius V :: Mileage Appears To Be Dropped Without Any Cause
We recently got back from a 2800 mile trip. Our v now has 10,600 miles on it. We have been averaging 41 mpg until the last two tank fuls. For some strange reason we got 34.5 displayed on our last tank, 32 actual, and right now after 90 miles we are showing 30.5 displayed. My wife drives the car 98% of the time, but even when I use hypermiling techniques the car is not yielding the past displayed results. We are about to take it in for the 10,000 oil change.
View 8 RepliesPrius C Fuel :: Mileage Dropped From 45 To 40 Mpg
I've had my car going at 45 mpg the past 2 years. I just hit my 45k mileage mark. I drive mostly on the highway to work so getting 45 mpg is pretty good for me. This last few fill ups, I noticed my gas mileage has gone down to 40 mpg. I thought it was a mistake if it was just once but the last 7 fill ups has been that way. It just went down all of a sudden and has stayed that way.
View 3 RepliesPrius (Gen 3) Fuel :: Mileage Has Dropped Significantly To High 20s / Low 30s
The last few days with snow and temps dipping below, my mileage has dropped significantly to high 20s/low 30s. I understand that (a) I park my car outside, (b) warm-up my car during the time I clean the snow, (c) no EBH, (d) no grill blocking, and (e) my drive to work is only ~15 miles round trip, but still mileage in the high 20s/low 30s is lousy, even lower than my break-in mileage (30s) that occurred in Jan. Even, my 1995 Corolla with 150k miles also gives about mid-20s during the winter with identical driving styles and conditions. So what's with the Prius?
View 19 RepliesPrius (2010-12) Fuel :: Mileage Dropped After Maintenance
I have 2600 miles on my 2012 mdl II. A month old. I have been averaging 47.5mpg since day one based on miles driven and gas put back in tank at each fill up. I have used only Mobil bottom 87 oct gas.Last fill up got me 48.2, very nice, then I filled up with mid grade 89 oct as it was all I could get then. The next day I was in the dealer for my 1000 mile checkup. when I got out my battery was down to 25%, okay no biggie. Then from there on out I notice my mpg changed alot. The comps used to read 49.1-50.1. Now it reads 42.2-44.1. I drive the same way and my 85 mile round trip to work hasn't changed. My first fill up since the dealer, got me 45.0 mpg. wow a big drop off.
View 4 RepliesPrius Plug-in 2012-15 :: EV Mileage Dropped Without Any Apparent Reason
I just took advantage of incentives and traded in my 2012 PiP for a 2015. In hilly San Francisco I'm accustomed to between 8 and 9 all-electric miles per full charge. Today was the new PiP's maiden voyage--a six-mile trip that in the old car would leave me with 2.1 to 2.3 EV miles remaining (per the readout.) But the new car actually ran out of electric power just before the trip's conclusion.
View 15 RepliesFord 6.7L Power Stroke Diesel :: Mileage Goes Down After New Fuel Filters
A month ago I changed engine oil, oil filter and both fuel filters. All replacement filters are Motorcraft and my mileage is off a solid 2 mpg after the fuel filter replacement.
View 14 RepliesPrius (2001-03) :: MPG Dropped After Transaxle Fluid Change
How to do the transaxle fluid change and finally did it myself. I dropped and clean the pan and put new gasket. The MPG dropped a little, I was getting 44.6 before fluid change and after fluid change it dropped to 43.3 ... Why this happened.
View 1 RepliesPrius (2010-12) :: After First Oil Change Mileage Is Lower
I went to the local dealer at about 6K miles to get the free 5K service. The invoice said synthetic service, so it should be the 0W-20. Now the average mileage since the last fill-up is lower by at least 3-4 MPG. My driving habits haven't changed. I inflated the tires to above 40 PSI. I looked at the oil. It is medium amber colored. (I forgot to look at it before the oil change. )
View 19 RepliesFord 6.7L Power Stroke Diesel :: 2011 - Change Fuel Filters At 10k Miles?
Ive had my 2011 for 20 months. I have 7,300 miles. I know the manual states changing around 22k but do you think time is a factor as well? I wont hit 22k for two years. Truck will be 3.5 yrs old. Should I just change them at 10k and see how they look? Don't want to waste the money either if its unnecessary. I use it 50/50 towing/unloaded.
View 8 RepliesPrius (Gen 2) :: 2009 - Right Mileage To Do Transmission Fluid Change
What is the right mileage to do transmission fluid change on my 2009 prius? Toyota said I don't supposed to do it on that car, never, but i think that's not right. I do lifetime warranty on transmission but still would like to put fresh fluid on transmission. Its about 190dlls at dealer. I currently have 44k miles on it and I am not sure to do it or not..
View 9 RepliesPrius (Gen 3) Fuel :: Low Tire Pressure Caused Low Mileage
I have 6600 miles on my Prius. When I first go my prius I increased my tire pressure to 40 psi. At 5000 miles I got an oil change and my checkup. Took a road trip of 400 miles and got 53-54 mpg.
Just before my fill up at 5500 I put a screw through my front passenger tire. The last two tanks of gas I have only gotten 45 mpg and was ready to take the Prius back into Toyota and ask them to fix whatever they did to the car.. To make a long story short I decided to check the tire pressure on all the tires again. Three of the tires were at 40 psi and the one Toyota fixed was at 35 psi. I inflated the one tire to 40psi and not I'm right back where I was on the mileage. 52-53 mpg.
Prius (2004-09) :: Lower Mileage After Spark Plug Change?
Experienced lower mileage after changing the plugs at about 120k miles?
In the 10 months (23.6k miles) since I had the dealer change the plugs, I have averaged 43.3 mpg overall.
Jetta - Volkswagen :: 2004 - Reoccurring Misfire / Dropped Mileage
Recently (5 weeks ago), my 2004 Jetta misfired, which caused the car to shake very noticeably, especially at lower speeds or while idling. The misfire was accompanied by the smell of fuel on the driver side and triggered the check engine light to flash. I took it to the shop (a VW dealer). They ran diagnostics, found it signaled a misfire (but no other major issues/sensors) and told me it was due to the spark plugs/wires. I was dubious, as they were not too old, but I allowed them to replace them anyway, as they assured me this would fix the problem.
Just this week, however, another misfire occurred, also accompanied by the smell of fuel and shaking. This time, the check engine light remained on (constant) for 2 days, and on the third day, it was off. I brought it back to the same shop to try to figure out the real cause of the misfire, which obviously was not the previous spark plugs. My city gas mileage has also decreased over the past month - down to about 20-21 mpg from 23-24. What could be causing such a reoccurring misfire without signaling an issue with a sensor or other part?
Volvo - XC70 :: 2000 - Gas Mileage Dropped Even Have To Accelerate Going Down Hills
The car has drastically dropped gas mileage from 17mpg to 11-12 mpg. It's laboring, and I even have to accelerate going down hills where I am usually breaking to keep from going too fast. I have had the whole car looked over twice -- timing belt was a little old, so we replaced it. The gas filter was full of gunk, and it was replaced. Still has the same problem. Mechanic can't find anything else wrong. I'm getting ready for a long road trip and don't want to pay for all that gas or break down along the way.
View 10 RepliesPassat (B5) :: 2002 - Changed Spark Plugs But Gas Mileage Dropped To 24 MPG?
As far as I know, my Passat has never had any other spark plugs other than OEM. I could also swear that those OEM plugs always had 3 grounds. My gas mileage historically averages about 27MPG in a mixed city/highway environment.
Recently, my spark plugs were replaced and now my gas mileage has dropped to 24MPG. I had a similar problem once with my previous car (1998 Jetta GLI) and it was due to going from a three ground spark plug to a single ground plug. Putting in three ground spark plugs instantly restored the gas mileage to previous levels.
I've read repeatedly that the NKG PFR6Q is the OEM plug but it only has a single ground. I realize that my memory could be faulty, but this is driving me nuts.
Alas I can't be sure what was there before versus what's there now, but I know my previous mechanic was a stickler for OEM parts. Would switching from a multi-ground to a single-ground cause a 10%+ drop in mileage?
Prius (2004-09) :: 2005 - Dashboard Lit Up And Battery Fan Kicked On - Mpg Dropped To 35mph
My 2005 Prius started showing all the symptoms of a dead/dying hv battery this morning. The dashboard lit up, the battery fan kicked on and my mpg dropped to 35mph. I was half way to work, so I just continued. I have been checking around and I can get it replaced for about $1000.00 reconditioned, but they have a 7-10 day waiting list. The dealership wants $3500.00 minimum, and says that I should not drive it at all and have it towed. Is this true? Can I drive on gas alone until I find a solution?
View 19 Replies