I drive a 2020 Honda civic 2.0 liter 4 cylinder engine. Live in Mississippi and drive 60 miles mainly on the highway almost everyday. My typical cruising speed is 80mph. Is constantly cruising at 80mph on highway healthy for my engine or is it too much?
Depending on the speed limit it could be much more dangerous to your wallet than your engine.
I generally agree with the above answers. However, 80 might be pushing it for some cars. Depending on your gearing, that might be running your engine at a pretty high rpm. I don’t know for your particular car, but that might put you somewhere high of 3000-3500 rpm, which could cause premature wear if it’s getting a lot of engine hours that fast.
I suppose a Civic with a 4 cylinder should be pretty rev happy. But it’d probably be happiest if you cruise below 3000, maybe keep ‘er 2500-2800 unless you’re passing.
@dad21m2 it’s rev’s at 2,000 - 2,200 on highway at 80mph so I’m all good
It's alright - I previous had a Corolla and now a Niro that spent years like that and it did not negatively impact the vehicles.
Highway driving is generally easier on the car than city or combined.
Former
I have a 1999 Honda Accord with 279K+ miles. 4 cylinders. Owned it since the beginning.
It has done tons of trips going up and down California going 80mph. And it still does those trips on occasion.
Highway mileage is fine for your car. As long as you don’t drive like a maniac.
Highway driving is actually the best practice for your car. The engine basically idles at highway speed. Transmission doesn't shift frequently like city driving. Plenty of airflow to cool your engine. It's the same reason why it's normal for semi truck engine to have 1,000,000 miles without a problem.
the engine definitely does NOT idle at highway speed.
