Quote:
Originally Posted by 2010civic
I do drive 70 when possible
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Slow down a bit.
To 65 mph, maybe even 60 mph.
50 miles at 70 is 0.71 hours
50 miles @ 60 is 0.83 hours, 0.12 hours longer, that's 7 minutes.
Chances are you won't see a 7 minute increase in your commute as your average speed doesn't necessarily need to go down by slowing down - you're probably not always doing 70.
Increasing the tyre pressure will also help - keep an eye on tyre wear.
(Though higher pressure has actually evened out the uneven shoulder-wear on my tyres
)
Blocking the upper grille will also help a bit - better aerodynamics, somewhat faster warm-up - though keep an eye on the engine temperature.
Make an easily removable "proof of concept" just in case the engine starts running too hot. Cardboard or some stiff plastic will do as a try-out, doesn't need to be neat.
Remove all unnecessary weight from the car.
Many have also removed their spare tyre and jack.
Those are the most common modifications people here do, aside from adjusting their driving style.