Out of curiosity, a while back I started tracking my mileage, writing down on my receipts my odometer at fill up and tracking it in my spreadsheet. I can notice the difference when I do more highway driving. Recently, due to the age of the car (and the driver 
), I've started driving slower, not accelerating too fast or going over 120 too often. Again, I've noticed the increase in mileage.
I was surprised about not filling up the gas tank in the Star article too. I've always heard you shouldn't let it drop below a quarter tank due to the build up of something (can't remember). Never thought of the weight issue before.
Also, I don't think it was mentioned, but unless your engine specifically requires it, do not fill up with premium gas. Regular is all you need, and will save you 10-12 cents per litre.
), I've started driving slower, not accelerating too fast or going over 120 too often. Again, I've noticed the increase in mileage.I was surprised about not filling up the gas tank in the Star article too. I've always heard you shouldn't let it drop below a quarter tank due to the build up of something (can't remember). Never thought of the weight issue before.
Also, I don't think it was mentioned, but unless your engine specifically requires it, do not fill up with premium gas. Regular is all you need, and will save you 10-12 cents per litre.
