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Old 06-10-2010, 07:31 PM   #1 (permalink)
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Default 2 PSI drop in tyre pressure = 10% less range?

Just wondering if this is right - I dropped my tyre pressure from 30 to 28 PSI a couple of tanks ago and i've noticed my range reduce considerably. I got 600kms outta my LPG tank at 30PSI, that's now dropped to 500 - 550 at 28... seems like an awful lot considering such a fickle change.

Also, does anybody elses zook chew fuel like a pig on the highways? I know it's not the most aerodynamic car, but I use 50% fuel on the highway than I do just bumbling around town... I thought commuting was supposed to be less efficient than hghways, or at least on par?
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Old 06-10-2010, 09:52 PM   #2 (permalink)
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All depends on how fast you are driving on the highway and how many times you have to stop and pick speed back up during your commute. I used to have a Ford Festiva, AKA Mazda 121. I got 35 mpg on the highway, averaging 80 mph, and did 36 mpg in Houston Texas, but my commute had little stop and go.

The Samurai is very much a brick going down the road. It's the first vehicle I've owned where I had to stay in the gas when going down a 7% grade to maintain 65 mph. Most vehicles, I'm downshifting to keep from blowing through the ton...
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