The two times my mileage dropped down to 12-13 mpg from my usual 14-17 mpg was due to a seized brake caliper.Originally Posted by Hotsauce
Super VXer
The two times my mileage dropped down to 12-13 mpg from my usual 14-17 mpg was due to a seized brake caliper.
Super VXer
I've noticed my mpg really jump up with warmer temps (I know about the blend switching of gasoline from winter to summer).
Even on my trip to Moab/Vegas/Malibu last year...when I went to the west coast via the mojave desert (rte I15) my gas mileage shot up to 23mpg on the highway. I was barely getting 17mpg before that in the "colder" climates of other states. My trip to Vermont with temps in the '90s yielded 23mpg there & 22mpg back.
This winter the mpg in my VX after 2" lift & 32" MT tires has been pretty low although I hadn't computed it I can only say I went from 350+ miles per tank of all around type driving down to around 265 miles per tank.
With Spring now trying to kick in and warmer temps plus change in gas blend...I'm now finally seeing some improvement..looks like I could top 300 miles this tank!
My VX is the first vehicle I've ever owned that seems to like hotter weather as far as gas mileage. My theory..the driveline fluids & engine oil thinning out & the tire temps going up!
[SIGPIC][/SIGPIC]"If its fast and reliable, its not cheap;
if its fast and cheap, its not reliable;
if its cheap and reliable, its not fast."
If love is blind, why is lingerie so popular?
Super VXer
You can't be more right about this situation,my VX also behave the same way yours whenever the weathers goes up the better mileage you gain from a gas tank.
All that happens because the fluids & oils has more density during cold season & takes much time to warm up;That's why is so important to use the right oil & fluids to help improve vehicule's performance
Dakar was just the begining.
Super VXer
All my vehicles have always shown better mileage in the summer, although some decreased a little when it got hot-hot (>90*F) out.
I've always thought that the lower air density in warmer weather might have had something to do with the improvement in mileage, too.
I think I'll write to Car & Driver and see what the automotive engineers on staff there have to say about it.
Super VXer
yep..this is what I was trying to say earlier
My other vehicles with exception of the VX always followed this trend of starting to get worse mileage as it got hot-hot (>90*F). I found it puzzling when my VX would jump alot higher (better mpg) as the temps soared,,,,,bring on global warming...lol.
Super VXer
PS - not all states have different fuel grades summer vs. winter. Some switch to a lower vapor pressure grade in the summer to reduce gas evaporation - a huge contributor to smog.
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