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post #1 of 16 (permalink) Old 05-15-2019, 11:32 PM Thread Starter
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2019 Limited MPG issues

I recently got a 2019 RAV4 Limited. Very impressed with the car and it's endless features, but I am getting ~20 combined MPG (approximately 75% city, 25% highway). I only have around 250 miles on it thus far, but I expected much better fuel economy. I drive with a light foot, and don't break until necessary. This is my first new car, so I am wondering if it just takes time to adjust itself? Or should I be taking it to the dealer?

On a completely unrelated note, since about two days ago, the back-up camera started showing a greyed-out distorted view right behind the car, but the sides are clear as ever, making it difficult to see anything. I don't remember it doing that before, so I am wondering if anyone else experienced this? I'll take a picture at some point if anyone's interested.

Appreciate any help!
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post #2 of 16 (permalink) Old 05-16-2019, 05:59 AM
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Questions:
1) Where are you located?

2) How long are your commutes?

3) How far between stoplights on average, and how long do you have to wait at most stoplights (5 seconds vs 30-60)?

When cold, engines are roughly 40% less efficient. This is due to retarded ignition timing and extra-rich conditions to speed warming and to heat up the catalytic converter as quickly as possible. In my experience (admittedly mostly with slightly less modern engines), this tuning condition exists until the engine reaches about 130 degrees F. Thus, questions 1 and 2; if you live in a colder climate and/or have a shorter commute, much of that commute will be driven with the engine running at about 60% efficiency.

As to question 3, obviously if you have a stoplight every 1/3 or 1/4 mile, obviously your vehicle will hardly have time to get up to speed before you have to brake again. And if you have to wait long periods between them, that is also a factor.

Finally, you mention braking as late as possible. Perhaps a better measure of driving efficiency is braking effort, rather than braking duration. That is, lightly easing on the brakes for a full 1/8 mile is actually more efficient than cruising along and braking hard at the last minute. And, of course, simply coasting to a stop is by far the most efficient, but naturally we have to balance efficiency efforts with not driving everyone around you insane.

I am getting about 33-34mpg in my XLE Premium, about 30-40% highway, but with many instances where I can go a mile between stoplights and stopsigns in my "city" driving. Getting stuck in traffic lowers my MPG several points. I used to get about 43mpg in my Honda Fit, which was rated at 29/33, and I get about 23mpg or so driving my wife's 2016 4Runner in the same manner. Yes, I drive like a grandpa.



Oh, you might genuinely have an issue with the backup camera....
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post #3 of 16 (permalink) Old 05-16-2019, 12:28 PM
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I've noticed that the #1 thing that affects my MPG is idling. If I let my car warm up for over 3 minutes, the avg mpg significantly drops. If you find yourself at red lights a lot, you will see your avg mpg drop. When I purchased my rav, the avg MPG was 5. That means it mostly sat idling and was rarely moved.
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post #4 of 16 (permalink) Old 05-16-2019, 03:46 PM
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Originally Posted by rad4lenin View Post
I've noticed that the #1 thing that affects my MPG is idling. If I let my car warm up for over 3 minutes, the avg mpg significantly drops. If you find yourself at red lights a lot, you will see your avg mpg drop. When I purchased my rav, the avg MPG was 5. That means it mostly sat idling and was rarely moved.
Ah! Also that!
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post #5 of 16 (permalink) Old 05-16-2019, 04:07 PM
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Cleaned the backup camera lens?
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post #6 of 16 (permalink) Old 05-16-2019, 05:20 PM
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XLT Premium with 1000 miles. City only mpg with lots of idling 22 mpg. Highway mpg on eco and cruise at 65 mph give or take 37.6 mpg, cruise at 75 mph it goes down to 35.5 mpg. Finally just got on the freeway for a trip to casinos in Louisiana about 370 miles round trip.
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post #7 of 16 (permalink) Old 05-16-2019, 05:31 PM
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Originally Posted by ssn571 View Post
XLT Premium with 1000 miles...
What's an XLT?

2019 XLE Premium AWD
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post #8 of 16 (permalink) Old 05-16-2019, 06:20 PM
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Originally Posted by ssn571 View Post
XLT Premium with 1000 miles. City only mpg with lots of idling 22 mpg. Highway mpg on eco and cruise at 65 mph give or take 37.6 mpg, cruise at 75 mph it goes down to 35.5 mpg. Finally just got on the freeway for a trip to casinos in Louisiana about 370 miles round trip.
Exciting numbers! I am about to drive from Oklahoma to Florida in a few weeks. Even having made this drive in an F250, the amount saved in gas going 70mph vs 80mph does not offset the extra 1.5 hours, given what I have decided my time is worth. So, knowing I can do 75-80 and still get maybe 32-34mpg is good to hear, heh.
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post #9 of 16 (permalink) Old 05-16-2019, 09:49 PM
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Originally Posted by Quickdtoo View Post
What's an XLT?
It was a one off model here. Can't get them anywhere. Maybe my hands are still jumping from the last jolt I got slowing down and accelerating from a low speed. XLE.
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post #10 of 16 (permalink) Old 05-17-2019, 06:15 AM
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Quote:
Originally Posted by ssn571 View Post
XLT Premium with 1000 miles. City only mpg with lots of idling 22 mpg. Highway mpg on eco and cruise at 65 mph give or take 37.6 mpg, cruise at 75 mph it goes down to 35.5 mpg. Finally just got on the freeway for a trip to casinos in Louisiana about 370 miles round trip.
This is consistent with my experience so far.
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