I'd have to disagree to your point. The cruise is electronically controlled speed controller and it's meant to maintain speed. Manual feather of the peddle is less likely produce better MPG than using the cruise. Today's CVTs are well matched to the cruise uphill/downhill, etc... and whether you use cruise or manual, you'll have to increase the RPM to maintain speed and my guess is that our ECUs can out-maneuver any heal/toe manual throttling.
I find the same to be true for me also. I attribute it to my driving being more consistent and the ECU adapting to my driving style. It's still off; yesterday I filled up and manually recorded 33.2 whereas the mpg indicator indicated over 35.
Agree with the other posters on cruise control not always optimal. Since it's function is to maintain constant speed it would make sense that it would lead to greater efficiency.....on flat roads. But throw in a few rolling hills and things change. A driver can always take advantage of momentum of the down grade and back-off on the throttle a bit instead of competing with gravity on the way up. Whereas cruise control will just want to maintain speed by revving on uphills.
Now if cruise control modules were designed and programed with true fuel economy in mind then it may integrate GPS mapping, atmospheric readings, etc to make intelligent decisions. That might be the case when self-driving cars are the norm.
For those with the 5 speed, the difference between 110kph and 120kph on the highway makes a huge difference for me.. almost a whole l/100km (2-3 mpg). I drive 80% highway and I've been getting 7.8l/100km (30mpg) pretty consistently.
Those of you with the 5 Speed, I did the research before buying my Automatic. The fact that you are not operating at the optimal RPM compared the computer managing RPM's you aren't going to get the advertised, 25c/33h MPG
'18 Crosstrek base.
With ~ 50% hwy driving low of 22 in the winter, high of 32 in the summer. Current tank may be the best (with lower octane e15 88 octane gas v. the usual 91 non ethanol!, strange), so far getting 34mpg. Car gauge is 4-5 mpg higher than reality so bust out the calculator. Usually fill at Kwik Starr (Top Tier gas).
I calculate mileage on every tank (on board computer is usually 3-4 mpg optimistic). 2018 premium is average for 19,000 miles is 31.8 mpg, including a cross country trip and trip to FL. I'm pretty pleased.
A couple of months ago I took a position with another company. My daily commute went from 12.5 miles, 40% crosstown/60% highway one way, to 3.3 miles one way in town only. And man has my mpg gone into the crapper. I am averaging around 22 miles per gallon, manually calculated - the Exagerometer shows around 24.5. And depending on timing, I can spend more time sitting at stop lights idling than actual moving, which of course does not do Good Things for mpg.
Contrast this to a trip I did a few weekends ago through central Colorado, up and over Weston Pass, 11,921 feet, between Fairplay and Leadville. Rough and rocky, a few sections that are steep and crawly - I got quite concerned on one stretch on the upward that was rather steep and rocky - engine power was just about maxed out. For the trip, the Exagerometer showed 40.3 mpg average, actual calculated was 35.7.
It was fascinating to note that when I got to the top of Weston Pass, there were three other vehicles there: two late model Outbacks and a late model Forester.
I'm stumped as to why my gas mileage is so low. 2017 crosstrek, bone stock with 17.6k miles at this point. Over 68 fill ups I am only averaging 21.1 mpg (according to fuelly), and have gone as low as 14 before.
Any tips would be super appreciated. I currently have a bike rack on...
I've logged just over 1800 miles since I bought the crosstrek on Aug 19. My mpg at this point in time is reading 35.6. About 1200 miles has been on the freeway with the remaining as city driving. I've used the AC maybe 1/3 of the time. The highest reading I have is 41 mpg on strictly...
Hello every one
I have an subaru xv 2.0i 2015 cvt. Converted to lpg.
The car is jerking when moving from full stop.
If i disconnect the battery and reconnect it drives perfect for a day or so.
And than its jerking again when its about 1500rpm and moving from full stop.
When is write jerking i...
Hello first post here. I got my Crosstrek about a month and half ago and I'm about 1300 miles in. I do drive in LA traffic but not all the time. I'm getting about 21/22 mpg . I do use the fuelio application everytime I fill up. Is there something wrong with my car?
One thing I did notice...
I drove to Los Angeles and back today in my new 2019 Cross trek [sic]. It is my first road trip and so wanted to report the mileage and see how it compares. My trip took me from the San Joaquin valley over the Grapevine on Hwy-99 and I5 and all the way to Huntington Beach, then back...