@NinaCaldwell
That’s literally mentioned in the introduction section of the manual. It doesn’t say anything about speed, though. Here’s the direct quote:
By following a few simple precautions for the first 600 miles, you can add to the performance, economy, and life of your vehicle.
- Do not race the engine.
- Avoid sudden acceleration while driving.
- Don’t maintain a single speed for too long, either fast or slow, as different speeds help break in the engine properly.
- Avoid hard stops, except in emergencies, to seat the brakes correctly.
- Fuel economy, engine performance, and oil consumption may vary depending on the break-in process and stabilize after 4,000 miles. New engines may consume more oil during the break-in.
- Don’t tow a trailer during the first 1,200 miles.
Honestly, I think your mpg seems low. I have over 300 miles on my hybrid and I’m getting 37.6 mpg so far, mostly on highways, even with some bad traffic, stopping and going. Are you in a really cold area?
I don’t think so. Most people who buy new cars don’t know about the break-in period.
People in this forum don’t represent everyone. Most people who know enough to join a car forum like this likely read the manual. But most of the general public does not.
Your mpg depends on your driving style. If you’re making short trips, like 4-5 miles daily, you won’t get good mpg. If you’re in a really cold area, the engine has to run to heat the cabin.
There’s a view on your dashboard that shows what’s powering your car at any time: just the engine, just the battery, or both. See if it ever shifts to battery mode while you drive.
Again, your mpg really depends on your driving habits. I mostly drive on highways, and my last non-hybrid Tucson was similar to yours too.
I drive a mix of highway and city, and in eco mode, my 25 hybrid gets 37. Going over 65 mph really drops the mileage, and cold weather doesn’t help either. You need to drive gently and use cruise control almost everywhere. Try different driving techniques because what you’re doing now isn’t working.
Highway driving isn’t great for me, which is around 110 km/h here. I usually get 7.8 - 8.3 L/100 km. Not sure what that converts to in mpg. I don’t drive on highways often and mainly use it for short trips. I can manage 5.9 - 6 L/100 km and only need gas every six weeks, even made it to seven weeks with one full tank.
I get about 35 mpg most weeks, and that’s with a short commute that isn’t great for mileage. During my latest long highway drive, I managed 40 mpg but had to keep my speed at or below 65 mph most of the time. If you want good mpg, you really have to keep your speed reasonable and avoid rapid acceleration.
Honestly, I’m a bit envious of my sister who drives her Prius however she wants and still gets 45 mpg. The Tucson requires more effort, but I really enjoy driving it.
I have the new '24 Hybrid Blue. With under 1k miles, I drove to and from Oklahoma City to Brandon, MO this week and averaged 33.5 mpg, even with those hills.
I picked up my 2025 hybrid 10 days ago. Just refueled for the first time this past Saturday. After about 100 miles of highway and city driving, I’m averaging 42 mpg.
I just finished my first tank of gas on a 2025 hybrid blue trim. I averaged just over 35 mpg with a good mix of city and highway driving. Of course, my fuel light came on with just under 400 miles, which is pretty good considering the tank is only 13.7 gallons. I’m at 90 miles on my second tank now, and I’m averaging 37 so far.