Engine break in period: this is a real thing

[rohoGames]

With each trip I take (and I've had to go from Indiana to Ohio a lot to take care of family issues), I think "this will be the trip where I get slightly less gas mileage than before." Nope!




Yes, the engine break-in period everyone talks about: it is a real thing. I'm at approximately 1800 miles driven now.

[Top_Fuel]

You will find that as we change from winter blended fuel to summer blend...and temperatures go up...that your fuel mileage will continue to go up as well.

[Mark]

You will find that as we change from winter blended fuel to summer blend...and temperatures go up...that your fuel mileage will continue to go up as well.

I agree with Top Fuel. My parents live 4 hours away. Winter trips average around 42-43 mpg, and summer trips average around 45-47 mpg with my 5-speed manual.

Personally, I think somewhat worn tires(doesn't matter what type or brand) help, too!

[Eggman]

With each trip I take (and I've had to go from Indiana to Ohio a lot to take care of family issues), I think "this will be the trip where I get slightly less gas mileage than before." Nope!
...
Yes, the engine break-in period everyone talks about: it is a real thing. I'm at approximately 1800 miles driven now.

Just wait, you can expect this to improve further. Temperature makes a difference. Also, watch your speed and be sure to air up your tires and you'll see even bigger improvements in fuel economy.

Try running 42-45psi in your tires or more if you're willing. I've had my factory Dunlop Enasaves up to 50 psi regularly. Try and find a setting you're comfortable with.


Hope everything works out with your family. Good thing you are able to help.

[Wallythacker]

Even with wide ish winter tires running 18psi or lower (don't ask) I was getting 40 ish mpg during winter conditions.
Weird thing is I got 65mpg one summer night in 2021. It was a leisurely drive on secondary roads. Both my scangauge and my dash showed 24.x km/l. I was shocked!