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83trekker's avatar
83trekker
Explorer
Jul 11, 2018

Driving 10km slower for gas mileage

OK so i am about to embark on my vacation in to BC, Canada from albera here come the weekend.

Looking at gas buddy im looking around 1.40 to 1.52 per liter or close to 6 a gallon for my US people on here.

I am wondering would a difference of driving 90km per hour compared to 100km an hour make a big difference?

I dont want to drive 80km with seems to be a sweet spot for driving mileage. As its too slow and kind of a hazard as a lot fo the roads i will be on will be single roads, and pissing people off behind me.

With my truck i have the power to easily drive 120km with my trailer but that would deff not help my mileage at all and not safe with trailer tires.

Any suggestions?

23 Replies

  • Your mileage is going to decline pretty quickly above 55-60 mph. But I'll still tow at 75 if the conditions allow for it. The mileage difference for my setup is maybe 10 mph versus 12, so even on a longer trip of (for example) 1800 miles you're talking about a cost difference of about $100 at current diesel pricing in my area. Not very material relative to the total cost of the trip.
  • Drive the speed you are comfortable with and if you get 5 vehicles stacked up behind you pull over at the next wide spot and let them by. I usually get a couple of thank you honks as folks go by (no one finger salutes) so people understand the reason for my speed or lack there of...
  • 83trekker wrote:
    Any suggestions?


    Drive the posted limit and pay the bill to do so. This is RVing, not an fuel economy competition. :W

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